RBSE Solutions Class 10 Social Science Chapter 8 Water Resources

Multiple Choice Questions

Question 1. How much of total water on earth is present in the form of saline water?
(A) 90%
(B) 60%
(C) 70%
(D) 97%
Answer: (D) 97%
In simple words: Most of the water on Earth is salty, found in oceans. This salty water cannot be easily used for drinking or farming.

🎯 Exam Tip: Remember the large percentage of saline water to highlight why freshwater resources are so precious and need careful management.

Question 2. Which project supplies drinking water to Jaipur city?
(A) Bisalpur Project
(B) Jakham Project
(C) Mahi Project
(D) Chambal Project
Answer: (A) Bisalpur Project
In simple words: The Bisalpur Project is a big plan that brings clean drinking water to Jaipur. It is a major source of water for the city.

🎯 Exam Tip: When learning about local projects, note down the specific city or region they benefit, as this is often tested.

Question 3. Rana Pratap Sagar Dam is in which district of Rajasthan?
(A) Jaipur
(B) Kota
(C) Bundi
(D) Chittorgarh
Answer: (D) Chittorgarh
In simple words: The Rana Pratap Sagar Dam is located in the Chittorgarh district of Rajasthan. This dam helps store water for many uses in the region.

🎯 Exam Tip: Knowing the district for major dams helps in understanding their geographical impact and importance.

Question 4. Beris as traditional methods of water harvesting, are found in plenty in which districts of Rajasthan?
(A) Jaipur and Ajmer
(B) Kota and Bundi
(C) Barmer and Jaisalmer
(D) Chittorgarh and Bhilwara
Answer: (C) Barmer and Jaisalmer
In simple words: Beris are old ways of collecting water and are very common in the Barmer and Jaisalmer areas of Rajasthan. These small wells help collect groundwater.

🎯 Exam Tip: Traditional water harvesting methods are key for desert regions, so link specific methods to the areas where they are prevalent.

Question 5. (Missing question text, reconstructing based on options and answer key) Which of the following is a type of natural water body?
(A) River
(B) Dam
(C) Canal
(D) Lake
Answer: (A) River
In simple words: A river is a natural flow of water, unlike dams or canals which are made by people. It is an important source of water for many communities.

🎯 Exam Tip: Differentiate between natural water sources (like rivers, lakes) and man-made structures (like dams, canals) to answer such questions accurately.

Water Resources Very Short Answer Type Questions

Question 1. What do you mean by watershed management?
Answer: Watershed management means using different ways to save and collect water in an area. This is done to make sure water is available all year long. It involves looking after the whole water-collecting area, including the land and plants, to manage water well.
In simple words: Watershed management is about saving and collecting water in an area so there's enough water for the whole year.

🎯 Exam Tip: Focus on the key terms "conservation," "harvesting," and "year-long availability" for a complete definition.

Question 2. Which is the longest man-made canal in India?
Answer: The Indira Gandhi Canal is the longest man-made canal in India. This large canal brings water to dry parts of Rajasthan, helping with farming and drinking water.
In simple words: The Indira Gandhi Canal is India's longest man-made canal.

🎯 Exam Tip: For superlatives (longest, largest), remember both the name and what makes it a superlative.

Question 3. Which is the longest dam in India?
Answer: The Hirakud Dam is the longest dam in India. It is built across the Mahanadi River in Odisha. The dam is very long and helps with flood control and power generation.
In simple words: The Hirakud Dam is the longest dam in India.

🎯 Exam Tip: Similar to canals, know the name and location of India's longest dams.

Question 4. What do you mean by barrage?
Answer: A barrage is a type of dam that has many movable gates. These gates control how much water flows out. Water is held back by the barrage and then let out through these gates. Barrages are often used to divert water into canals for irrigation.
In simple words: A barrage is a dam with gates that control the flow of water.

🎯 Exam Tip: Emphasize "sluice gates" and "retained water" when defining a barrage, as these are its key features.

Question 6. Gadisar and Gajrupsagar are famous in which district?
Answer: Gadisar and Gajrupsagar are famous in the Jaisalmer district. These are historic lakes or ponds that played a vital role in water supply for the desert city.
In simple words: Gadisar and Gajrupsagar are well-known water bodies in the Jaisalmer district.

🎯 Exam Tip: Connect specific water bodies or historical sites to their correct geographical locations.

Question 7. Which multipurpose project of Rajasthan is aimed at development of tribal areas of Rajasthan?
Answer: The Mahi Bajaj Project is aimed at the development of tribal areas in Rajasthan. This project helps these regions with irrigation and electricity. It aims to improve the lives of the tribal communities.
In simple words: The Mahi Bajaj Project helps develop tribal areas in Rajasthan.

🎯 Exam Tip: For multipurpose projects, remember their primary goals and the specific communities or regions they benefit.

Question 8. Which dam was built with clay?
Answer: The Panchna Dam was built with clay. It is an earth-fill dam, meaning it's constructed using soil, clay, and rock. This traditional construction method uses natural materials from the surrounding area.
In simple words: The Panchna Dam was constructed using clay materials.

🎯 Exam Tip: Pay attention to unique features of dams, such as their construction material, as these details can be important.

Water Resources Short Answer Type Questions

Question 1. Write the names of multipurpose projects managed by the central government and state governments.
Answer:
Projects managed by the Central Government include: Bhakra Nangal, Rihand, Damodar, Hirakud, Kosi, and Tehri. These are large-scale projects important for national development.
Projects managed by state governments include: Chambal Project (Madhya Pradesh and Rajasthan), Nagarjuna Sagar Project (Andhra Pradesh), Tungbhadra Project (Andhra Pradesh and Karnataka), Sardar Sarovar Project (Gujarat, Madhya Pradesh and Rajasthan), Mayurakshi & Farakka Projects (West Bengal), Mahi Project (Gujarat and Rajasthan), Gandak Project (Bihar and Uttar Pradesh), and Machchhkund Project (Andhra Pradesh and Odisha). These projects often cater to regional needs and multiple states.
In simple words: Central government handles big national projects like Bhakra Nangal, while state governments manage projects like Chambal Project for their regions.

🎯 Exam Tip: Group projects by the level of government managing them (central vs. state) and try to recall at least two examples for each category.

Question 2. What is the need for self-reliance on water?
Answer: The need for water self-reliance is growing urgent because water shortage is getting worse every day. This is due to groundwater levels falling, old water storage systems failing, big dams silting up, and less rainfall. More people also mean higher demand for water. Therefore, communities need to become self-reliant in water to ensure everyone has enough. Focusing on local water solutions can make a big difference.
In simple words: We need to rely on ourselves for water because there's less groundwater, old water systems are broken, and more people need water.

🎯 Exam Tip: When discussing water scarcity, mention key contributing factors such as groundwater depletion, increased demand, and unreliable rainfall.

Question 4. What is a khadin? Explain.
Answer: A khadin is a traditional water harvesting method first used by the Paliwal Brahmins of Jaisalmer many years ago. It is an excellent way to get water for drinking and farming. In this method, rainwater from hilly areas is collected in a low-lying field by building a temporary or permanent small wall (check dam). Any extra water is allowed to flow into another khadin. Khadins help refill underground water, protect the soil, and keep moisture in the soil, leading to better crops. This system also makes water available in small wells (beris) built along its edges. These systems show ancient wisdom in sustainable water use.
In simple words: A khadin is an old method of collecting rainwater in fields, especially in Jaisalmer, to use for drinking and farming.

🎯 Exam Tip: Clearly describe the mechanism of khadin (collecting rainwater, check dam, overflow) and its multiple benefits (drinking, irrigation, soil moisture).

Question 5. Explain the Bhakra Nangal Project.
Answer: The Bhakra Nangal Project is India's largest and most important multipurpose project. It started in 1948 and was completed in 1963. This project is built on the Sutlej River near Bilaspur in Himachal Pradesh. It's a joint effort by Punjab, Haryana, and Rajasthan. The project aims to provide electricity, irrigation water, and drinking water to areas between the Sutlej and Yamuna rivers. The main Bhakra dam is 516.16 meters long and 167.64 meters high, making it the world's largest gravity dam built with cement and concrete. A second dam, the Nangal Dam, was built 13 km downstream to store extra water. Power stations at Nangal, Kotla, and Gangwal generate electricity. These dams supply water to canals like Sarhind, Nangal, Bist Doab, and Narvana Canals, greatly boosting regional development.
In simple words: The Bhakra Nangal Project is India's biggest multipurpose project on the Sutlej River, providing water for irrigation, drinking, and electricity to several states.

🎯 Exam Tip: Highlight key facts like its status as India's largest, the river it's on, the states it benefits, and its multipurpose uses (irrigation, power, drinking water).

Question 6. Water harvesting techniques have developed well in Rajasthan. Why?
Answer: Water harvesting techniques have developed well in Rajasthan because the state has always faced low rainfall and droughts. Due to this long history of water scarcity, people in Rajasthan have always been aware of the need to save water. Many local rulers and traders built baoris (stepwells), jhalras, nadis, wells, kuis, and johars. These structures provided essential drinking water to the local people and livestock, showing a strong tradition of water conservation driven by necessity. The arid climate has fostered innovative and robust water management practices.
In simple words: Rajasthan has good water harvesting because it often has low rainfall and droughts, so people learned to save water from a long time ago.

🎯 Exam Tip: Link the development of water harvesting directly to the climatic conditions (scanty rainfall, drought) and the historical solutions adopted by local communities.

The steps are decorated with ornate railings, pillars and balconies. The balconies are adorned with local deities related to water. Construction of baoris in Rajasthan was done at individual and social levels. Baoris are found in all districts of Rajasthan.

This paragraph seems like a general description about baoris. I will add it as context before the Long Answer Q1, or integrate it into Q1's answer if relevant.

This paragraph about canals and the Sawai Madhopur project seems to be an intro or continuation of an answer. It mentions irrigation and drinking water facilities. I'll need to see where it fits logically in the Long Answer section.

Water Resources Long Answer Type Questions

Question 1. Explain different methods of water harvesting in Rajasthan?
Answer: Rajasthan has developed many traditional ways to harvest water due to its dry climate:
Baori: These are step-wells, which are rectangular, square, or circular reservoirs built with steps made of bricks or decorative stones. They are surrounded by a courtyard, and their steps often have railings and balconies decorated with local water deities. Baoris were built by individuals and communities and are found all over Rajasthan. They serve as important sources of groundwater.
Pond: Ponds collect rainwater and provide drinking water for both people and animals. Most ponds are built near slopes. Building ponds often has religious and social importance, which helps in protecting and maintaining them. Ponds play a crucial role in local water cycles.
Lakes: Lakes are popular for saving flowing water. Local rulers, merchants, and nomadic tribes (banjaras) built these lakes. They supply drinking water and water for farming, feeding canals to irrigate nearby areas. Lakes have also helped in social and religious growth and sustained life during dry periods and hunger.
Nadi: A nadi is a smaller version of a pond, common in western Rajasthan. It collects rainwater in flat desert areas and is usually 4 to 5 meters deep. If it's shallower, water can only be stored for a short time before clay fills it. Nadis are cleaned every year to maintain their depth and are vital for drinking water for rural people, animals, and wildlife.
Tanka: This is another traditional rainwater harvesting method in western Rajasthan. It's a 5 to 6-meter-deep pit made inside homes and fields, with its top covered by stones or other local materials. These tankas provide a secure and clean source of drinking water, especially during dry seasons.
Beri or Small Well: These wells are dug 5 to 6 meters deep in western Rajasthan on the catchment land of ponds and khadins. Their diameter is 2 to 3 feet, and their walls are lined with stones to allow groundwater to seep in. Beris are used in summer when rainwater dries up and are common in Barmer and Jaisalmer. They are locally called 'beri'. The process ensures water availability through the year.
In simple words: Rajasthan uses methods like step-wells (baori), ponds, lakes, small ponds (nadi), underground tanks (tanka), and small wells (beri) to collect and save rainwater. Each method helps people and animals get water in different ways.

🎯 Exam Tip: For each method, clearly state what it is, where it's found, and its primary function (e.g., Baori = step-well, groundwater access).

Question 2. Explain the Indira Gandhi Canal Project in Rajasthan.
Answer: The Indira Gandhi Canal Project originates from the Harike Barrage, which is located where the Sutlej and Ravi rivers meet. This canal was built to ensure drinking water, use barren land for farming, and support human settlements along the international border. It is the longest man-made canal not only in India but also in Asia. The canal is 649 km long; 169 km passes through Punjab, 14 km through Haryana, and the remaining length is in Rajasthan. This canal provides drinking water to 9 districts, 29 towns, and 3461 villages in Rajasthan. This project was built in two stages: first, the Rajasthan feeder canal (204 km long, between the origin and Masitwali), and second, the main canal (445 km long, between Masitwali and the end). There are 9 branches towards the west (international border) built along the natural slope. To reach areas where the ground slopes upwards, water is lifted through 7 lift canals. This project will irrigate 17.41 crore hectares of land and has been extended to Gadra Road in Barmer. The canal has transformed desert areas into green agricultural lands.
In simple words: The Indira Gandhi Canal Project is India's longest man-made canal, starting from the Harike Barrage. It brings drinking and irrigation water to many parts of Rajasthan, Punjab, and Haryana, especially helping dry areas.

🎯 Exam Tip: Mention the canal's origin (Harike Barrage), its length, the states it covers, and its main benefits like irrigation and drinking water supply.

Question 3. Explain the Chief Minister Jal Swavlamban Yojna.
Answer: The Chief Minister Jal Swavlamban Yojna is a scheme designed to improve water availability at the village level. It involves digging and repairing wells, ponds, and nadis in panchayats. Obstacles in drainage paths are removed, and drainage systems are fixed to enhance water supply to storage facilities. This four-year scheme aims to benefit 21,000 villages by coordinating various government departments, NGOs, religious groups, non-resident villagers, and local people. It also focuses on renovating water recharge facilities, such as building deep continuous contour trenches, farm ponds, and mini percolation tanks. Other activities include repairing minor irrigation tanks, developing pastures, and promoting crop and gardening techniques. Public awareness campaigns, like street plays and rallies, are also organized to encourage water conservation. The project aims to make communities self-sufficient in water.
In simple words: The Chief Minister Jal Swavlamban Yojna is a government plan to make villages self-sufficient in water by repairing ponds, digging wells, and building new water storage systems. It also teaches people about saving water.

🎯 Exam Tip: Focus on the scheme's objective (water self-reliance at village level), its comprehensive approach (repair, build, educate), and the collaborative effort involved.

Question 4. Explain any two major multipurpose dam projects of government of India.
Answer:
Damodar Valley Project: This was the first important project of independent India, starting in 1948 on the Damodar River. It is a joint project of West Bengal and Jharkhand. The Damodar River was known as the 'Sorrow of Bengal' because it often changed its path, caused erosion, and led to floods. The river flows 290 km through Bihar and 240 km through West Bengal before joining the Hooghly River. Tributaries like Barakar, Bokaro, and Konar also feed it. About 18,000 square km were affected by its erosion and floods. The Indian Government started the Damodar Valley Corporation (DVC) based on the American Tennessee Valley Project. Its goal is to improve the economic life of people in West Bengal and Jharkhand. Dams like Maithon, Tilaiya, Bokaro, Konar, and Durgapur Check Dam were built. Three power plants were also constructed at Bokaro, Chandrapura, and Durgapur, along with a 2500 km canal system.
Hirakud Project: This is an important project in Peninsular India, built on the Mahanadi River in Odisha. The Mahanadi was called the 'Sorrow of Odisha' because of its floods. It starts in the Bastar Hills of Chhattisgarh. The Hirakud Dam was built in the Sambalpur district, with canal systems like Borgarh, Sesan, and Sambalpur on its sides. The second phase of the project included building four power stations. This project provides irrigation, flood control, and electricity, greatly benefiting the region. Both projects demonstrate India's commitment to harnessing river resources for national development.
In simple words: The Damodar Valley Project helped control floods and generate power in West Bengal and Jharkhand. The Hirakud Project on the Mahanadi River in Odisha also controlled floods and produced electricity. Both projects aim to improve people's lives.

🎯 Exam Tip: For each project, state the river, states benefited, and key objectives like flood control, irrigation, and power generation. Mentioning the "Sorrow of Bengal/Odisha" adds good context.

Water Resources Multiple Choice Questions

Question 1. How much of the total freshwater on earth is available as underground water?
(A) 10%
(B) 20%
(C) 30%
(D) 40%
Answer: (C) 30%
In simple words: About 30% of all the fresh water on Earth is found under the ground. This water is stored in aquifers and is an important source for human use.

🎯 Exam Tip: Distinguish between surface freshwater (rivers, lakes) and groundwater when recalling percentages.

Question 2. Which is the largest multipurpose dam project of India?
(A) Bhakra Nangal Project
(B) Hirakud Project
(C) Damodar Valley Project
(D) Chambal Valley Project
Answer: (A) Bhakra Nangal Project
In simple words: The Bhakra Nangal Project is the biggest dam project in India that serves many purposes. It helps with electricity, irrigation, and drinking water.

🎯 Exam Tip: Remember "Bhakra Nangal" as the largest multipurpose project for its wide-ranging benefits across several states.

Question 3. Damodar Valley Project covers which states of India?
(A) Bihar
(B) Jharkhand
(C) West Bengal
(D) Jharkhand & West Bengal
Answer: (D) Jharkhand & West Bengal
In simple words: The Damodar Valley Project covers both the states of Jharkhand and West Bengal. It was designed to help with development in these two regions.

🎯 Exam Tip: For projects spanning multiple states, ensure you list all the states involved to get full marks.

Question 4. The longest portion of Indira Gandhi Canal passes through which state?
(A) Punjab
(B) Haryana
(C) Rajasthan
(D) Madhya Pradesh
Answer: (C) Rajasthan
In simple words: The biggest part of the Indira Gandhi Canal runs through Rajasthan. This is because the canal was mainly built to bring water to the dry areas of Rajasthan.

🎯 Exam Tip: Connect major infrastructure projects like canals to the state they primarily benefit or traverse the longest distance in.

Question 6. The Panchna Dam is built on the confluence of how many rivers?
(A) Two
(B) Four
(C) Five
(D) Six
Answer: (C) Five
In simple words: The Panchna Dam is special because it is built where five rivers meet. This confluence provides a large amount of water for the dam.

🎯 Exam Tip: Specific numerical details, like the number of rivers a dam is built on, are often asked in quizzes.

Question 7. Which city of Rajasthan is also known as the ‘City of Step Wells'?
(A) Bundi
(B) Jaipur
(C) Jaisalmer
(D) Banner
Answer: (A) Bundi
In simple words: Bundi is famous as the 'City of Step Wells' because it has many historic step-wells, or baoris. These ancient structures are key to its cultural heritage.

🎯 Exam Tip: Relate cities to their famous nicknames or unique historical features, especially those related to water management.

Question 8. Johar is the popular method of rainwater harvesting in which region of Rajasthan?
(A) Marwar
(B) Shekhawati
(C) Barmer
(D) Bikaner
Answer: (B) Shekhawati
In simple words: Johar is a popular way to collect rainwater in the Shekhawati region of Rajasthan. It's a type of pond used to store water for later use.

🎯 Exam Tip: Be precise in matching traditional water harvesting methods to the specific regions where they are most common.

Question 9. Which river was called the 'Sorrow of Bengal'?
(A) Damodar
(B) Brahmaputra
(C) Padma
(D) Hugli
Answer: (A) Damodar
In simple words: The Damodar River was known as the 'Sorrow of Bengal' because it caused frequent and damaging floods in the region.

🎯 Exam Tip: Rivers known as "Sorrow of..." (e.g., Kosi - Sorrow of Bihar) are common knowledge questions.

Question 10. Which river was called the 'Sorrow of Odisha'?
(A) Damodar
(B) Brahmaputra
(C) Mahanadi
(D) Hirakud Dam
Answer: (C) Mahanadi
In simple words: The Mahanadi River was called the 'Sorrow of Odisha' because its floods caused a lot of damage in the state.

🎯 Exam Tip: Be careful not to confuse the dam name with the river name for "Sorrow of Odisha".

Question 12. The Mahi Bajaj Sagar Project is a joint project between which of the following pairs of states?
(A) Rajasthan and Gujarat
(B) Rajasthan and Punjab
(C) Rajasthan and Haryana
(D) Rajasthan and Madhya Pradesh
Answer: (A) Rajasthan and Gujarat
In simple words: The Mahi Bajaj Sagar Project is a shared project between the states of Rajasthan and Gujarat. Both states work together for its benefits.

🎯 Exam Tip: For interstate projects, it is essential to remember all the collaborating states.

Question 13. Which dam is built on the confluence of five rivers?
(A) Meja Dam
(B) Panchna Dam
(C) Jawai Dam
(D) Jakham Dam
Answer: (B) Panchna Dam
In simple words: The Panchna Dam is uniquely built where five different rivers come together. This makes it a significant water storage facility.

🎯 Exam Tip: Questions about unique features like a dam built on multiple river confluences are common knowledge points.

Question 14. Which of the following has hundreds of steps so that people can walk down to access water?
(A) Pond
(B) Lake
(C) Baori
(D) Nadi
Answer: (C) Baori
In simple words: A baori is a step-well with many steps leading down to the water. This design makes it easy for people to reach the water, even when levels are low.

🎯 Exam Tip: Recognize "steps" as the defining characteristic of a baori or step-well.

Question 15. How many villages in Rajasthan are going to be benefited from Chief Minister Jal Swalamban Yojna?
(A) 11,000
(B) 21,000
(C) 31,000
(D) 41,000
Answer: (B) 21,000
In simple words: The Chief Minister Jal Swalamban Yojna aims to help 21,000 villages in Rajasthan. This project focuses on improving water supply in these villages.

🎯 Exam Tip: Specific numbers related to beneficiaries or project scales are important facts to remember for schemes.

Water Resources Fill in the blanks

Question 1. Fill in the blanks:
1. Most of the water on earth is available as ................water in oceans and seas.
2. The major portion of ................ is available as ice in icebergs and glaciers.
3. Rajasthan is ................ in rainfall.
4. ................ is the main source of freshwater for us.
5. Jawaharlal Nehru termed the multipurpose dam projects as temples of modern India.
6. The Central government has started ................ Abhiyan for self-reliance on water.
7. The Rajasthan government has started ................ for self-reliance on water.
8. Damodar Valley Project is a joint project between West Bengal and ................
Answer:
1. Most of the water on earth is available as saline water in oceans and seas.
2. The major portion of freshwater is available as ice in icebergs and glaciers.
3. Rajasthan is deficient in rainfall.
4. Groundwater is the main source of freshwater for us.
5. Jawaharlal Nehru termed the multipurpose dam projects as temples of modern India. He saw them as symbols of progress.
6. The Central government has started Jal Kranti Abhiyan for self-reliance on water.
7. The Rajasthan government has started Chief Minister Jal Swavalamban for self-reliance on water.
8. Damodar Valley Project is a joint project between West Bengal and Jharkhand.
In simple words: The blanks are filled with key terms about water sources, scarcity, and projects. Most Earth water is salty, much freshwater is ice, Rajasthan lacks rain, and groundwater is vital. Important leaders and governments have launched projects to secure water, often through joint efforts between states.

🎯 Exam Tip: For fill-in-the-blanks, identify the core concept of each statement and recall the specific term that fits perfectly within the context.

Water Resources Match Columns

Question 1. Match the following:

Answer:
1. Hirakud Project - (D) Mahanadi
2. Chambal Project - (A) Damodar (Note: This might be a typo in the source as Chambal is on Chambal River, not Damodar. Damodar project is on Damodar river.)
3. Sardar Sarovar - (E) Sutlej (Note: This might be a typo in the source as Sardar Sarovar is on Narmada River, not Sutlej. Bhakra Nangal is on Sutlej.)
4. Jakham Project - (C) Jakham
5. Mahe Bajaj Project - (B) Mahi
In simple words: The Hirakud Project is on the Mahanadi River. The Jakham Project is on the Jakham River, and the Mahe Bajaj Project is on the Mahi River. There may be some discrepancies in the source text for Chambal and Sardar Sarovar, which are typically associated with different rivers.

🎯 Exam Tip: Always double-check the river associated with major dam projects; a single project can be built on a specific river, which helps in accurate matching. For example, Chambal Project is on the Chambal River, and Sardar Sarovar Project is on the Narmada River.

Water Resources Very Short Answer Type Questions

Question 1. How much of the total freshwater on earth is available in the form of ice in icebergs and glaciers?
Answer: About 69% of the total freshwater on Earth is available in the form of ice in icebergs and glaciers. This frozen water is a huge reserve, but most of it is not easily accessible for direct human use. This makes other freshwater sources even more critical.
In simple words: Nearly 70% of all freshwater on Earth is frozen as ice in glaciers and icebergs.

🎯 Exam Tip: Remember that most of the world's freshwater is locked up as ice, which emphasizes the limited availability of usable liquid freshwater.

Question 2. Bhakra Nangal Project is made on which river?
Answer: The Bhakra Nangal Project is built on the Sutlej River. This river is a major source of water for the project, which provides irrigation and electricity to several northern Indian states. It is a vital project for regional development.
In simple words: The Bhakra Nangal Project is located on the Sutlej River.

🎯 Exam Tip: Knowing the specific river for major dam projects is a fundamental piece of information to recall.

Question 3. Write the names of dams in Damodar Valley Corporation.
Answer: The dams built under the Damodar Valley Corporation include: Maithon Dam on Barakar River, Tilaiya Dam on Bal Pahari, Bokaro Dam on Bokaro River, Konar Dam on Konar River, Aghar Dam on Damodar River, Ath Dam on Bal Pahari and Durgapur Check Dam. These dams are crucial for flood control, irrigation, and power generation in the Damodar Valley. The project transformed a region once prone to devastating floods into a thriving industrial and agricultural area.
In simple words: The Damodar Valley Corporation has several dams like Maithon, Tilaiya, Bokaro, Konar, Aghar, Ath, and Durgapur Check Dam.

🎯 Exam Tip: Try to associate at least a few dam names with their respective projects or rivers to show comprehensive knowledge.

Question 5. Write the names of some famous baoris of Rajasthan.
Answer: Some famous baoris in Rajasthan include Tapi Baori (Jodhpur), Bhararej Baori (Dausa), Binata ki Baori (Chittor), and Chand Baori (Abhaneri). These step-wells are not only historical structures but also important examples of traditional water harvesting. They showcase impressive ancient architecture and engineering.
In simple words: Famous baoris in Rajasthan are Tapi Baori, Bhararej Baori, Binata ki Baori, and Chand Baori.

🎯 Exam Tip: When listing specific examples, try to include their locations if known, as it adds detail to your answer.

Question 6. Write the names of some famous ponds of Rajasthan.
Answer: Some famous ponds in Rajasthan are Hemabas pond (Pali), Sareri and Meja ponds (Bhilwara), Banakia & Senapati ponds (Chittorgarh), and Gadisar and Gajrupsagar ponds (Jaisalmer). These ponds have historically served as crucial water sources for various communities. Many of them are still maintained for water supply and local ecosystems.
In simple words: Famous ponds in Rajasthan include Hemabas, Sareri, Meja, Banakia, Senapati, Gadisar, and Gajrupsagar.

🎯 Exam Tip: Just like baoris, remember specific names and their districts for Rajasthan's famous ponds.

Question 7. What is the main source of freshwater for us?
Answer: Groundwater is the main source of freshwater for human use. It is found beneath the Earth's surface in aquifers. This water is accessed through wells and borewells for drinking, irrigation, and other purposes, making it vital for human survival and activities. It is naturally filtered by soil layers.
In simple words: Groundwater is our most important source of fresh water.

🎯 Exam Tip: Emphasize "groundwater" as the primary source of usable freshwater, as opposed to saline ocean water or frozen glaciers.

Question 8. Write the names of any three multipurpose dam projects which are managed by the Central Government.
Answer: Three multipurpose dam projects managed by the Central Government are Bhakra Nangal, Hirakud, and Damodar. These large-scale projects provide benefits like electricity generation, irrigation, and flood control across multiple states. They are crucial for national development and resource management.
In simple words: Bhakra Nangal, Hirakud, and Damodar are three big dam projects managed by the central government.

🎯 Exam Tip: Be ready to name central government-managed projects, as they represent significant national infrastructure.

Question 9. Bhakra Nangal Dam is built on which river?
Answer: The Bhakra Nangal Dam is built on the Sutlej River. This river is a key water source for the project, which is vital for irrigation and power generation in several northern Indian states. It plays a significant role in the region's economy.
In simple words: The Bhakra Nangal Dam is constructed on the Sutlej River.

🎯 Exam Tip: Always remember the river associated with a major dam project for quick recall.

Question 10. Sardar Sarovar Dam is built on which river?
Answer: The Sardar Sarovar Dam is built on the Narmada River. This is one of the largest and most controversial dam projects in India, providing water and electricity to Gujarat, Madhya Pradesh, Maharashtra, and Rajasthan. It is a symbol of engineering prowess in water management.
In simple words: The Sardar Sarovar Dam is built on the Narmada River.

🎯 Exam Tip: Note that Sardar Sarovar is on the Narmada, distinct from other major dams on different rivers.

Question 11. Hirakud Dam is built on which river?
Answer: The Hirakud Dam is built on the Mahanadi River. Located in Odisha, it is known as one of the longest earth dams in the world. This dam helps control floods and generates hydroelectric power for the region. It also provides irrigation to vast agricultural lands.
In simple words: The Hirakud Dam is built on the Mahanadi River.

🎯 Exam Tip: Clearly link Hirakud Dam with the Mahanadi River and its location in Odisha.

Question 13. Indira Gandhi Canal originates from which barrage?
Answer: The Indira Gandhi Canal starts from the Harike Barrage. This barrage is crucial for diverting water into the canal system.
In simple words: This canal starts from the Harike Barrage.

🎯 Exam Tip: For questions asking about origins of canals or rivers, remember key landmarks or specific source locations.

Question 14. Write the names of five rivers which are associated with Panchna Dam.
Answer: The five rivers linked with the Panchna Dam are Barkhera, Bhadravati, Machi, Bhainsawat, and Ata. The dam is known for being built at the confluence of these five rivers.
In simple words: The five rivers linked with Panchna Dam are Barkhera, Bhadravati, Machi, Bhainsawat, and Ata.

🎯 Exam Tip: When listing multiple items, ensure you recall all of them accurately and check for correct spelling.

Question 15. We cannot use water from ocean. Why?
Answer: Ocean water contains a high amount of salt, which makes it saline and unfit for human use. This high salt content makes it impossible for people to drink or use it for most agricultural and industrial purposes without expensive treatment.
In simple words: Ocean water has too much salt. This makes it impossible for people to drink or use it for many other things.

🎯 Exam Tip: Understand the basic properties of different water types to explain their uses and limitations clearly.

Question 16. What did Jawaharlal Nehru say about multipurpose dam projects of India?
Answer: Pandit Jawaharlal Nehru, India's first Prime Minister, famously termed these large multipurpose projects as "the temples of modern India". He believed these projects were vital for the nation's progress and development in many areas.
In simple words: Jawaharlal Nehru called these large dam projects "the temples of modern India" because he believed they were very important for the country's progress.

🎯 Exam Tip: Memorize important quotes or historical statements by key figures for descriptive answers to show deeper understanding.

Question 17. Why does Rajasthan need multipur-pose dam projects?
Answer: Rajasthan faces a scarcity of water due to low rainfall and frequent droughts. Therefore, multipurpose dam projects are essential for the state to ensure a reliable and adequate supply of water for its population, agriculture, and industries.
In simple words: Rajasthan needs many-purpose dam projects because it does not get much rain and often has less water. These projects help make sure people have enough water.

🎯 Exam Tip: Connect geographical features (like low rainfall) to the need for specific infrastructure (like multipurpose dams) in your explanation.

Question 18. How has Indira Gandhi Canal helped Rajasthan?
Answer: The Indira Gandhi Canal has been immensely helpful to Rajasthan by providing crucial drinking water to 9 districts, 29 towns, and 3461 villages. This extensive water supply has transformed many arid regions, supporting both human settlements and agriculture.
In simple words: The Indira Gandhi Canal gives drinking water to many areas in Rajasthan, including 9 districts, 29 towns, and 3461 villages. It brings essential water to a big part of the state.

🎯 Exam Tip: Focus on the specific benefits and impacts of major development projects, using numbers or examples where available.

Question 20. How does religious belief help in maintenance of ponds and lakes?
Answer: Many people hold a religious belief that offering drinking water to another human being or any animal is a very good and pious deed. This cultural belief encouraged communities to actively participate in maintaining and preserving ponds and lakes, seeing it as an act of service and devotion.
In simple words: Many people believe giving water to others or animals is a good religious act. This belief encouraged them to help keep ponds and lakes clean and maintained.

🎯 Exam Tip: Highlight the social or cultural factors that influence community-based conservation efforts in your answers.

Water Resources Short Answer Type Questions

Question 1. Write a short note on Chambal Valley Project.
Answer: The Chambal Valley Project is a joint venture between Rajasthan and Madhya Pradesh, which started in 1953 on the Chambal River. Its main aim was to prevent damage from floods and other natural disasters caused by the river. The project included building the Gandhi Sagar Dam in Madhya Pradesh, the Rana Pratap Sagar Dam in Rajasthan, and the Jawahar Sagar Pickup Dam, along with a canal system and power generation plants at Kota Barrage to provide irrigation and electricity.
In simple words: The Chambal Valley Project started in 1953 as a joint effort between Rajasthan and Madhya Pradesh on the Chambal River. Its main goal was to stop floods and other natural problems caused by the river. The project built dams like Gandhi Sagar, Rana Pratap Sagar, and Jawahar Sagar, along with canals and power plants, to provide irrigation and electricity.

🎯 Exam Tip: When describing a project, provide a balanced overview covering its purpose, location, key components (dams, canals), and benefits.

Question 2. Write a short note on Mahi Bajaj Sagar Project.
Answer: The Mahi Bajaj Sagar Project is a collaborative initiative of Rajasthan and Gujarat, launched in 1971 on the Mahi River, which originates from the Vindhyachal mountains. It was developed to provide irrigation facilities and electricity, especially for the tribal areas of Dungarpur and Banswara. Key components include the Mahi Bajaj Sagar Concrete Dam in Banswara, Kadana Dam built by Gujarat, and the Kagdi Pickup Dam for a canal system, along with two power stations for electricity generation.
In simple words: The Mahi Bajaj Sagar Project started in 1971 on the Mahi River, as a joint effort between Rajasthan and Gujarat. It aimed to provide irrigation and electricity to tribal areas like Dungarpur and Banswara. Key structures included the Mahi Bajaj Sagar Concrete Dam, Kadana Dam, and Kagdi Pickup Dam, along with power stations for electricity.

🎯 Exam Tip: Detail the objectives, geographical scope, and main structures of the project, including the states involved and the river on which it is built.

Question 4. Write a short note on lakes.
Answer: Lakes are widely used for conserving flowing water in Rajasthan. Historically, local rulers, merchants, and nomadic communities (banjaras) built these lakes to provide drinking water and irrigation. They fed canals to irrigate nearby areas and also played a significant role in the social and religious development of the regions, helping sustain life during droughts and famines. Lakes are natural depressions filled with water, serving as reservoirs for various uses.
In simple words: Lakes are common ways to save moving water. Local leaders and traders built them to supply drinking and irrigation water, especially during dry times. They also helped local areas grow socially and religiously.

🎯 Exam Tip: Emphasize the multiple roles of water bodies (drinking, irrigation, social, religious) and mention who was traditionally responsible for their construction.

Question 5. Write a short note on beri.
Answer: Beris are traditional small wells found in western Rajasthan, created by digging 5 to 6-meter-deep pits in the catchment areas of ponds and khadins. They have a diameter of 2 to 3 feet and are lined with stones, which allow groundwater to seep in. These structures are mainly used in summer when rainwater dries up, and are called 'beri' locally. Beris are commonly found in districts like Barmer and Jaisalmer.
In simple words: Beris are small wells dug in western Rajasthan, usually 5-6 meters deep near ponds. Their stone-lined walls allow groundwater to seep in. They store water for summer and are common in Barmer and Jaisalmer.

🎯 Exam Tip: Describe the physical characteristics and traditional use of local water harvesting structures like beris, including their location and function.

Water Resources Long Answer Type Questions

Question 1. Write note on availability of water on earth and in India. Why do we need to ensure proper management of water resources?
Answer: Water covers about 71% of the Earth's surface, while land covers the remaining 29%. Of all the water on Earth, 97% is saline ocean water, leaving only 3% as freshwater. A large portion of this freshwater (69%) is frozen in icebergs and glaciers, and 30% is found as underground water. Consequently, only 1% of the total freshwater is directly accessible for human uses like drinking, irrigation, and economic activities. In India, the total potable water is 1869 cubic meters, but only 1123 cubic meters are utilized, comprising 690 cubic meters of surface water and 433 cubic meters of groundwater. Much of the rainwater is wasted by flowing into oceans via rivers. Proper management of this water is crucial to combat issues like drought and famine caused by irregular monsoons, and to meet the increasing water demands of a growing population.
In simple words: Most of the Earth is covered in water, but 97% is salty ocean water. Only 3% is fresh water, with most of that frozen in ice or deep underground. Humans use only a small part of this freshwater. In India, we have a lot of potable water, but we don't use it all effectively. We need to manage water well because much rainwater is wasted, and droughts and famines occur due to irregular rain. Good water management is also vital for our growing population.

🎯 Exam Tip: Start with global water distribution, then focus on national data for India, and conclude with the critical reasons for effective water management (drought, population, waste).