RBSE Solutions Class 9 Social Science Chapter 20 Calamities and Management

Question 1. Which of the following natural disaster is not related to India?
(a) Earthquake
(b) Flood
(c) Landslide
(d) Volcano
Answer: (d) Volcano
In simple words: Out of the given options, volcanic eruptions are not a common natural disaster in India. Earthquakes, floods, and landslides frequently affect different parts of the country. Volcanic activity is very rare in India.

🎯 Exam Tip: Remember to identify the unique characteristics of each natural disaster and its prevalence in specific geographical regions when answering such questions.

Question 2. The major earthquake region of India is:
(a) Southern Plateau
(b) Himalaya
(c) Central India
(d) Coastal India
Answer: (b) Himalaya
In simple words: The Himalayan region in India experiences the most earthquakes. This is because it is a young mountain range formed by the collision of tectonic plates, making it tectonically active.

🎯 Exam Tip: Knowing the tectonic plate boundaries and geological formations helps in identifying earthquake-prone zones worldwide.

Question 3. The major landslide occurs in the mountainous region of India is:
(a) Aravalli
(b) Himalaya
(c) Satpura
(d) Vindhyachal
Answer: (b) Himalaya
In simple words: Landslides happen most often in the Himalayan mountains. The steep slopes, loose soil, and heavy rainfall in this region cause the earth and rocks to slide down.

🎯 Exam Tip: Connect landslides to regions with steep slopes, heavy rainfall, and unstable geological structures, common in young fold mountains like the Himalayas.

Question 5. The major drought region of India is
(a) Northern plain
(b) Eastern region
(c) Western region
(d) Coastal region
Answer: (c) Western region
In simple words: The western part of India, especially Rajasthan, faces the most droughts. This area gets very little rainfall, making it dry and prone to water shortages.

🎯 Exam Tip: Relate drought-prone areas to regions that receive low and unreliable rainfall, typically deserts or semi-arid zones.

Very Short Answer Type Questions

Question 1. What are natural disasters?
Answer: Natural disasters are harmful changes in nature that are not good for humans. These events cause a lot of damage to life and property. Examples include landslides, earthquakes, and floods.
In simple words: Natural disasters are harmful natural events like floods or earthquakes that cause damage.

🎯 Exam Tip: When defining natural disasters, always include examples to illustrate your point and emphasize their negative impact on humans.

Question 2. What is an earthquake?
Answer: An earthquake happens when any part of the earth shakes or vibrates because of an event that occurs inside the earth. These vibrations can be very powerful and destructive. The movement of tectonic plates causes these tremors.
In simple words: An earthquake is when the ground shakes due to movements inside the Earth.

🎯 Exam Tip: Focus on the key terms "vibrations" and "inside the earth" to accurately define an earthquake.

Question 3. What do you understand by landslide?
Answer: A landslide is when soil and rocks roll down from a higher slope. If many rocks and soil slide down at once, it can make a loud sound like thunder. This often happens on unstable mountain slopes.
In simple words: A landslide is when soil and rocks fall down a slope, sometimes with a loud noise.

🎯 Exam Tip: Key aspects of a landslide include the movement of "soil and rocks" and "from upper slopes."

Question 4. What is flood?
Answer: A flood is when a large amount of water overflows from a river, lake, or sea and covers land that is usually dry. This can happen due to heavy rainfall, melting snow, or high tides. One river known for floods is the Kosi River.
In simple words: A flood is when water covers land that is normally dry, often from overflowing rivers after heavy rain.

🎯 Exam Tip: Define flood by focusing on the "overflow" of water and its impact on normally "dry land."

Question 6. What is the main cause of drought?
Answer: The main cause of drought is deforestation. Other significant causes include:
1. Uncertain and uneven rainfall due to monsoon climate.
2. Low level of underground water.
3. Deforestation.
4. Poor management of water storage.
5. Destruction of natural ways of collecting water.
6. No proper water policy for using and managing water.
7. Fast growth of population, which puts a strain on water resources.
In simple words: Droughts are mainly caused by cutting down trees, unpredictable rainfall, low groundwater, and poor water management, made worse by a growing population.

🎯 Exam Tip: When listing causes, group related points for clarity and include both natural factors (rainfall) and human activities (deforestation, poor management).

Short Answer Type Questions

Question 1. What do you understand by management?
Answer: Management, in this context, refers to the steps taken by individuals, society, and the government both before and after a disaster. The goal is to control and lessen the loss of property and lives. This involves planning, preparing, and responding effectively.
In simple words: Management is planning and actions taken by people and government before and after a disaster to save lives and property.

🎯 Exam Tip: Emphasize that disaster management is a continuous process, occurring both "before and after" the event, and involves multiple levels (individual, society, government).

Question 2. In which parts of India earthquakes are common and why?
Answer: Earthquakes are common in the Northern mountains and foothills, especially the Himalayas. This is because the Himalayas are young fold mountains that are still forming. This continuous geological process makes the region unstable and prone to frequent earthquakes.
In simple words: Earthquakes happen often in India's northern mountains, like the Himalayas, because these mountains are still developing and are not stable.

🎯 Exam Tip: Connect earthquake-prone areas directly to their geological features, such as being "young fold mountains" and tectonically "unstable."

Question 3. Which are flood-prone areas in India?
Answer: The North and Northern plains of India are areas that often experience floods. These regions have large river systems and can receive heavy monsoon rainfall, making them susceptible to overflowing rivers. The Gangetic plains are particularly vulnerable.
In simple words: The northern plains of India, where big rivers flow, often face floods.

🎯 Exam Tip: Identify major river basins and regions with high monsoon rainfall when asked about flood-prone areas in India.

Question 5. In 1984 in which city of India a big incident occur due to leakage of chemical gas?
Answer: On December 3, 1984, a major incident involving the leakage of chemical gas occurred in Bhopal, India. This tragic event, known as the Bhopal gas tragedy, resulted in significant loss of life and long-term health issues. The gas leak was from a pesticide plant.
In simple words: In 1984, a big chemical gas leak happened in Bhopal, causing a huge disaster.

🎯 Exam Tip: Remember the specific date (December 3, 1984) and location (Bhopal) for this significant historical industrial disaster.

Question 6. In which country deaths were occur first time due to Anthrax?
Answer: The USA was the country where deaths due to Anthrax were first reported. This incident was related to the intentional use of Anthrax as a biological weapon in 2001, not a natural outbreak.
In simple words: Deaths from Anthrax were first seen in the USA, linked to its use in attacks.

🎯 Exam Tip: When answering about specific incidents like Anthrax deaths, it's helpful to recall the context (e.g., biological weapon, not natural disaster) if relevant.

Long Answer Type Questions

Question 1. How can the natural disaster of earthquake be tackled?
Answer: Earthquakes can be managed in several ways to reduce their impact:
1. The government should set up a network of instruments to measure earthquakes. This helps in early detection and warning. These tools, called seismographs, measure the intensity.
2. Alerts should be announced through TV and radio to inform people about earthquakes. This allows people time to take safety measures.
3. At a personal level, people should move to an open area if an earthquake happens. Staying away from buildings and structures is important.
4. People should switch off electricity and gas cylinder regulators immediately. This prevents fires and explosions.
5. Everyone should help each other regardless of caste, religion, or background during such a disaster. Community support is crucial for rescue and recovery.
In simple words: To tackle earthquakes, governments should use special instruments and send out warnings on TV and radio. Individuals should go to open areas, turn off electricity and gas, and help others in need.

🎯 Exam Tip: Structure your answer by categorizing actions as government-level (instrumentation, alerts) and individual-level (safety measures, community support).

Question 2. Explain the main causes of landslide.
Answer: The main causes of landslides are:
1. **Formation of rocks:** The type and stability of rocks in an area greatly influence landslide risk. Weathered or fractured rocks are more prone to sliding.
2. **Slope of earth:** Steep slopes are more likely to experience landslides because gravity has a stronger pull on the material.
3. **Vibrations caused by earthquake:** Earthquakes can loosen soil and rocks on slopes, triggering landslides.
4. **Prolonged rainfall and seepage:** Long periods of heavy rain saturate the soil, making it heavier and less stable. Water seeping into the ground also reduces friction between soil particles and rock layers, causing them to slide.
In simple words: Landslides happen because of unstable rocks, steep ground, earthquake shaking, and heavy, continuous rain that makes the soil weak.

🎯 Exam Tip: For causes, provide distinct points and explain how each factor contributes to the phenomenon, using simple cause-and-effect relationships.

Question 3. Describe the main causes of flood in India.
Answer: The main causes of floods in India are:
1. India receives a high average rainfall, especially during the monsoon season. This large volume of water can quickly overwhelm drainage systems.
2. There is often a lack of proper drainage systems to handle excess rainfall. Old or insufficient drainage infrastructure cannot cope with heavy downpours.
3. Reckless cutting down of trees (deforestation) in catchment areas and upper river regions leads to soil erosion. This soil then silts up river courses, reducing their capacity and causing them to overflow.
4. Too much grazing by animals in hilly areas removes vegetation, leaving the soil exposed and easily eroded. This contributes to silting.
5. Farming methods like shifting cultivation (jhum cultivation) remove natural vegetation cover. This exposes the soil to erosion, leading to river silting and floods.
In simple words: Floods in India are caused by heavy rainfall, poor drainage, cutting down too many trees, overgrazing, and certain farming methods that wash soil into rivers, making them overflow.

🎯 Exam Tip: When describing causes, ensure you cover both natural factors like high rainfall and human-induced factors like deforestation and agricultural practices.

Question 4. What are the ways to check drought?
Answer: Droughts are a severe danger, often leading to famine due to less water. There are three main forms of famine that occur during droughts:
1. **Akal (Grain Famine):** This happens when crops fail because of too little rainfall, leading to a lack of food grains.
2. **Dvikal (Double Famine):** This is a worse situation where both grain and fodder (animal food) production fail due to low rainfall. It impacts both humans and livestock.
3. **Trikal (Triple Famine):** This is the most severe form, occurring when there is little rainfall, insufficient production of grain and fodder, and also not enough drinking water. The Famine of Vikram Samvat 1956 (1900 AD), known as Chappan Akal, is considered one of the greatest famines in history. One important way to manage droughts is to implement joint river plans. This involves diverting excess water from rivers to areas with less water availability. Such projects would help increase underground water levels and promote greenery, making regions more resilient to drought.
In simple words: To prevent droughts, we need to move extra river water to dry areas to raise groundwater and grow more plants. There are also three types of famines: Akal (no food), Dvikal (no food or animal feed), and Trikal (no food, feed, or water).

🎯 Exam Tip: When explaining ways to check drought, discuss both the types of famine that can occur and practical solutions like river interlinking projects to ensure water availability.

Coping with Drought

Question 5. Highlight the problems faced by the flood prone regions and their solutions.
Answer: The problems faced by flood-prone regions are:
1. In India, over 2000 deaths occur every year due to floods, leading to a significant loss of human life.
2. Around 80 lakh hectares of land are prone to floods, affecting vast agricultural areas.
3. About 35 lakh hectares of crops are destroyed annually, causing huge economic losses for farmers.
4. The lives of people living on 3 crore acres of land become unbalanced due to constant flood threats and damage.
5. The country loses approximately one thousand crore rupees every year because of flood damage.
6. Floods have the biggest impact on animal wealth, leading to many livestock deaths.
7. More than 12 lakh animals die, and many houses are destroyed each year.
8. Around 60% of flood losses in India happen in major states like Bihar, Uttar Pradesh, West Bengal, Assam, and Odisha.
9. Floods disrupt communication, transport, water sources, destroy crops, and can lead to epidemics.
**Flood Management Solutions:**
1. The National Flood Control Plan was launched in 1954 to reduce flood damage. This plan focused on building river banks and improving water drains.
2. Dams were built on rivers like Mahanadi, Damodar, Satluj, Vyas, Chambal, and Narmada as part of multi-purpose projects to control water flow.
3. To control floods, regions where rivers originate should be covered with forests. This helps to reduce soil erosion and prevents rivers from silting up, thereby controlling floods.
In simple words: Flood-prone areas suffer from deaths, destroyed crops, unbalanced lives, and financial losses, especially affecting animals. Solutions include national plans, building dams, and planting forests in river origin areas to prevent soil erosion.

🎯 Exam Tip: When discussing problems and solutions for floods, quantify the impact (deaths, land, crops, money) and then provide practical, government-level interventions as solutions.

Flood Management

Question 6. Explain the man-made disasters.
Answer: Man-made disasters are caused by human activities or failures. Here is a list of such disasters:
1. **Fire:** Fires take countless lives every year. Careless use of electric appliances, firecrackers, and other flammable materials often cause fires, turning everything into ashes.
2. **Road Accidents:** Over a lakh people die in road accidents each year in India. Ignoring traffic rules, drinking, and driving are major reasons for these accidents.
3. **Rail Accidents:** While railways are a cheap mode of transport, increasing pressure and technical issues or human carelessness have led to more accidents.
4. **Mass Destructive Weapons:** These include atomic and nuclear weapons, which have replaced traditional warfare. A single bomb can destroy an entire city in seconds, making wars far more destructive.
5. **Nuclear Accidents:** Man-made bombs, such as Hydrogen and atom bombs, are extremely powerful and destructive. Accidental leaks or explosions can cause widespread devastation.
6. **Chemical and Industrial Accidents:** Technical and scientific progress has increased the use of chemicals in daily life, like fertilizers, pesticides, and water purification agents. Some of these chemicals can pollute the environment. Major industrial accidents, like the 1984 Bhopal gas tragedy (where poisonous gas from an insecticide factory killed 3000 people), show the severe risks of unsafe chemical handling. Unsafe storage and leakage of such chemicals are harmful to everyone.
In simple words: Man-made disasters include fires, road and rail accidents due to carelessness, and the use of destructive weapons like nuclear bombs. Chemical leaks from factories also cause huge harm.

🎯 Exam Tip: For man-made disasters, classify them (e.g., accidents, technological failures, warfare) and provide specific examples for each, highlighting the human element in their cause.

Very Short Answer Type Questions

Question 1. When did the National Flood Control Plan launch?
Answer: The National Flood Control Plan was launched in the year 1954. It was introduced to manage floods based on weather reports and forecasts. This plan aimed to reduce the severe damage caused by annual floods.
In simple words: The National Flood Control Plan started in 1954 to help manage floods.

🎯 Exam Tip: Remember specific dates or years when significant national plans were introduced, as these are often tested.

Question 2. What is the average rainfall receive in the northeast India?
Answer: Northeast India receives an average rainfall of more than 250 cms. This region is known for its exceptionally heavy monsoon rains, contributing to its lush greenery but also making it prone to floods. It is one of the wettest regions globally.
In simple words: Northeast India gets a lot of rain, more than 250 centimeters on average.

🎯 Exam Tip: When stating numerical data, ensure accuracy and consider adding a small context to make the answer more informative.

Question 3. Name the rivers that bring less flood destruction.
Answer: The rivers that bring less flood destruction include Satluj, Beas, Ravi, Chenab, and Jhelum. These rivers are part of the Indus River system, and while they can flood, their destructive impact is generally less compared to other major river systems in India. This is partly due to better management and geographical factors.
In simple words: Rivers like Satluj, Beas, Ravi, Chenab, and Jhelum cause less flood damage.

🎯 Exam Tip: Identify rivers based on their historical flood impact and the region they flow through; some river systems are naturally less prone to catastrophic flooding.

Question 4. Name the east flowing rivers which are mainly responsible for flood in India.
Answer: The east-flowing rivers mainly responsible for floods in India are the Ganga, Yamuna, Gomati, Ghaghra, and Gandak. These rivers flow through large, densely populated plains and receive significant rainfall during the monsoon, often leading to severe floods. The Ganga-Brahmaputra basin is particularly vulnerable.
In simple words: East-flowing rivers like Ganga, Yamuna, Gomati, Ghaghra, and Gandak are the main ones that cause floods in India.

🎯 Exam Tip: Focus on the major east-flowing rivers in the Indo-Gangetic plain, as they are historically associated with extensive flood damage.

Question 5. Write the three forms of famine.
Answer: The three forms of famine are Akal, Dvikal, and Trikal. These categories describe different levels of scarcity during a drought. Akal is related to grain shortage, Dvikal to grain and fodder shortage, and Trikal to shortages of grain, fodder, and water.
In simple words: The three types of famine are Akal, Dvikal, and Trikal.

🎯 Exam Tip: Clearly list the three forms of famine and briefly define each if possible, to show complete understanding.

Question 6. What is double famine?
Answer: Double famine, or Dvikal, occurs when the production of both crops (for human food) and fodder (for animal food) fails due to insufficient rainfall. This leads to a severe shortage of food for both people and their livestock. This situation is more critical than a single crop failure.
In simple words: Double famine happens when both food crops and animal feed crops fail because there is not enough rain.

🎯 Exam Tip: Distinguish double famine by emphasizing the failure of *both* crop and fodder production, highlighting its dual impact.

Short Answer Type Questions

Question 1. Name the drought prone area in India.
Answer: Drought-prone areas in India include Eastern Gujarat, East Rajasthan, East Punjab, East Haryana, East Uttarakhand, West Madhya Pradesh, Central Maharashtra, Karnataka, South Andhra, Central Karnataka, North West Bihar, West Uttar Pradesh, and West Odisha. These regions often experience low and irregular rainfall. These areas require special attention for water management and conservation.
In simple words: Many parts of western and central India, like Rajasthan, Gujarat, and parts of Maharashtra, are prone to drought.

🎯 Exam Tip: When listing drought-prone areas, try to recall regions from different geographical parts of India that are known for low rainfall.

Question 2. Describe the three types of famine.
Answer: The three types of famine are as follows:
1. **Akal (Grain Famine):** This occurs when agricultural crops fail due to inadequate rainfall, leading to widespread starvation. It directly impacts human food supply.
2. **Dvikal (Double Famine):** This happens when both food crops and animal fodder production fail because of insufficient rainfall. This affects both human population and livestock, making the situation worse.
3. **Trikal (Triple Famine):** This is the most severe type of famine, characterized by low rainfall, very little grain and fodder production, and also a lack of available drinking water. It creates a complete crisis involving food, feed, and water shortages.
In simple words: The three types of famine are Akal (no food crops), Dvikal (no food crops or animal feed), and Trikal (no food, no feed, and no drinking water).

🎯 Exam Tip: Clearly define each type of famine by specifying what resources are scarce in each scenario (grain, fodder, drinking water).

Question 3. Write the cyclone-prone areas in India.
Answer: India's coastal regions are prone to cyclones. Sea storms from the Arabian Sea, typically from April to June, affect western coastal areas. Cyclones from the Bay of Bengal affect states like Andhra Pradesh, Telangana, Odisha, and West Bengal, especially from October to December. The Bay of Bengal is particularly known for generating powerful cyclones.
In simple words: Cyclones mainly affect India's coastal areas, with the Arabian Sea impacting the west and the Bay of Bengal impacting eastern states like Andhra Pradesh and Odisha.

🎯 Exam Tip: Identify the two major cyclone sources (Arabian Sea, Bay of Bengal) and list the states along the respective coastlines that are frequently affected.

Question 4. What are the causes of flood?
Answer: The causes of floods include:
1. **Deforestation and pasture destruction:** Removing trees and grazing lands destabilizes soil, leading to increased runoff and erosion, which can clog river beds.
2. **Destruction of traditional water resources:** Neglecting or destroying natural ponds, lakes, and other traditional water storage systems reduces the landscape's capacity to hold excess water.
3. **Building constructions ignoring natural drainage:** Constructing buildings and infrastructure without considering natural water flow paths can block drainage, causing water to accumulate and overflow.
4. **Loss of lives and property occur:** While this is an *effect* of floods, its inclusion here might refer to how rapid, unmanaged urban growth in floodplains exacerbates the problem, leading to greater loss when floods occur. *The core causes are the first three points.*
5. **Blocking of rivers results in the formation of lakes:** This also describes an *effect* or consequence that can *exacerbate* floods by creating temporary reservoirs that might later burst. For a direct cause, consider factors leading to excess water or hindered drainage.
In simple words: Floods happen because people cut down trees, destroy natural water areas, and build structures that block water's natural path.

🎯 Exam Tip: Clearly distinguish between causes (deforestation, poor planning) and effects (loss of life, property, lake formation). Focus on initial triggers for a "causes" question.

Long Answer Type Questions

Question 1. Differentiate between the natural and man-made causes of earthquake.
Answer: An earthquake is when vibrations occur in any part of the Earth due to events inside it. It's a very destructive natural disaster that can cause great damage instantly. Its intensity is measured on the Richter scale using an instrument called a seismograph, named after Charles Richter. An earthquake's intensity can go up to 12, with levels up to 5 considered normal. The speed of vibrations increases with destructive power.
**Causes of Earthquake:**
The primary cause of earthquakes is the movement of tectonic plates within the Earth. Additionally, the contraction and expansion caused by vapour inside the Earth can also trigger earthquakes.
**Earthquake Prone Area:**
If we study earthquakes in India, we see that the Northern mountains and foothills, particularly the Himalayas, are the most earthquake-prone. The Himalayas are young fold mountains still undergoing formation, making them unstable. While the Deccan plateau was once considered stable, recent earthquakes in Koyna and Latur have shown that parts of this region are also vulnerable. The Kachchh and Bhuj regions of Gujarat also fall into earthquake zones.
**Earthquake as a Danger:**
Earthquakes are natural disasters that instantly cause huge changes on Earth, terrifying people. They lead to thousands of deaths, crack the Earth's surface, destroy roads, and collapse buildings, turning them into piles of debris. Bridges and dams also collapse, posing future dangers.
**Relief from Earthquake and Management:**
At society and government levels, all governments take relief and help measures after an earthquake. India's death toll from earthquakes is often high due to its dense population. Therefore, implementing a strong network of earthquake preparedness and response is essential.
In simple words: Earthquakes are caused by natural tectonic plate movements and internal Earth vapour. They are measured on the Richter scale and are common in the Himalayas and parts of Gujarat. Earthquakes are dangerous, causing many deaths and destruction, so good management and relief efforts are very important.

🎯 Exam Tip: When differentiating, clearly state natural causes (tectonic plates, internal Earth processes) versus human causes (none directly for earthquakes, but human activity can *exacerbate* impact). Also, include measurement, prone areas, dangers, and management in a comprehensive answer.

Question 3. Describe the chemical and industrial accidents and its measures.
Answer: Chemical and industrial accidents are serious man-made disasters. Modern technical and scientific development has led to an increased use of chemicals in everyday life. These include chemical fertilizers, pesticides, insecticides, and chlorination for water purification plants. Some of these chemicals can pollute the atmosphere.
Many dangerous chemicals are found in homes, such as hair spray, deodorant, nail-paint, nail-paint remover, and toilet cleaner. Terrorists also use very sensitive, flammable, and cheap explosive chemicals, which can cause major accidents. Unsafe use or storage, as well as leaks, of these chemicals are harmful to the entire community. A tragic example is the 1984 Bhopal gas tragedy in India, where a poisonous gas leak from the Union Carbide insecticide manufacturing industry killed 3000 people in just a few hours. Many survivors continue to suffer from related diseases.
**Security Measures:**
1. Such industries should be built far away from residential areas to protect people.
2. People living nearby and workers must be informed and trained to respond to such accidents safely.
3. Industrial waste from these factories must be treated properly before disposal to protect the environment.
4. Strict insurance and security laws should be followed to ensure safety and provide compensation in case of accidents.
In simple words: Chemical and industrial accidents happen due to the widespread use and unsafe handling of chemicals in daily life and factories. These can cause pollution and many deaths, like the Bhopal gas tragedy. To prevent them, industries should be located away from homes, workers should be trained, waste must be treated, and strict safety laws should be followed.

🎯 Exam Tip: When describing chemical and industrial accidents, include both common household chemicals and large-scale industrial examples. Ensure to clearly list and explain effective security measures.

Question 4. What are the causes of origin of natural disasters?
Answer: Natural disasters are not caused by a single reason but by a combination of factors. Both external and internal forces of the Earth directly contribute to disasters like earthquakes and volcanoes. Human activities also play a major role. Unwise and continuous exploitation of resources, using the Earth in various ways due to a growing population, has harmed the planet. Deforestation, rock weathering, and water crises are results of these activities, which contribute to global warming. All these causes together are responsible for natural calamities. Human greed and a focus on consumer satisfaction disturb the natural balance. In its quest for blind development, humanity has upset nature's balance, indirectly inviting these natural disasters.
**Classification of Natural disasters on the basis of origin:**
1. **Change in earth:** These calamities happen due to sudden changes inside the Earth. Examples include earthquakes, rock sliding, glacier sliding, and volcanic eruptions. In India, volcanoes are generally not active.
2. **Seasonal calamities:** These disasters are caused by seasonal changes. Examples are cyclones, tsunamis, floods, and droughts.
3. **Calamities caused by living beings:** These are caused by bacteria and other living organisms. Examples include epidemics, diseases from dead animals, plague, and malaria.
In simple words: Natural disasters are caused by Earth's internal and external forces, along with human actions like cutting down trees and overusing resources. They are classified by origin: Earth changes (earthquakes), seasonal changes (floods), and living things (diseases).

🎯 Exam Tip: When discussing causes, clearly separate natural factors from human-induced factors. Classify disasters by their primary origin (geological, meteorological, biological) to provide a structured answer.

Map Based Questions

Question 1. Shade the earthquake affected area on the political map of India.
Answer: The shaded regions on the map below indicate the major earthquake-affected areas in India, primarily the Himalayan belt, parts of Gujarat (Kutch), and sections of the Deccan Plateau.

In simple words: The map shows areas that often have earthquakes. These are mainly the high mountains in the north and some parts of western and central India.

🎯 Exam Tip: Familiarize yourself with the geographical distribution of major disaster-prone areas on an Indian map, especially the Himalayan region for earthquakes.

Question 2. Shade the landslide regions on the political map of India.
Answer: The shaded regions on the map below represent the major landslide-prone areas in India, which primarily include the Himalayan mountain range and the Western Ghats.

In simple words: The map highlights areas where landslides often occur. These are the northern Himalayan mountains and the long mountain range along India's western coast.

🎯 Exam Tip: Understand that landslide zones often coincide with geologically young and steep mountainous regions with high rainfall, such as the Himalayas and Western Ghats.

Question 3. Mark the flood prone region on the political map of India.
Answer: The map below visually identifies the main flood-prone regions in India. These areas are typically affected by heavy rainfall and river overflows, especially during the monsoon season.

In simple words: The grey areas on the map show where floods happen most often in India. These are usually low-lying areas near big rivers or the coast.

🎯 Exam Tip: When marking flood-prone regions, remember that major river basins like the Ganga and Brahmaputra, along with coastal areas, are key locations to include.

Question 4. Mark the drought-regions of India.
Answer: The map below illustrates the primary drought-prone regions of India. These areas commonly experience water scarcity due to insufficient rainfall and dry conditions.

In simple words: The grey parts on this map show areas in India where there is often not enough rain, leading to dry conditions and water shortages.

🎯 Exam Tip: When identifying drought-prone areas, focus on regions with low annual rainfall, such as parts of Rajasthan, Gujarat, and the interior of the Deccan Plateau.