ICSE Class 10 Geography Sample Paper 2024 with Solutions

PART I (30 Marks)

(Attempt all questions from this Part.)

Question 1
Study the extract of the Survey of India Map sheet No. G43S7 and answer the following questions:

(i) (a) Give the six-figure grid reference for .201 in the eastern part of the map extract. [2 Marks]

Answer: 288045

Teacher's Note:
a) Six-figure grid references are read by taking the 100km square letters (if applicable), then the 2-digit easting followed by the third proportional digit, and the 2-digit northing followed by the third proportional digit.
b) Students often confuse eastings and northings; always remember to write the easting first and then the northing.

(i) (b) What are the brown patches in the northeast quarter of the map extract? [2 Marks]

Answer: Sand dunes (or sandy areas).

Teacher's Note:
a) Conventional signs and symbols given at the bottom of the Survey of India map must be thoroughly revised before the examination.
b) Do not confuse brown contour lines with brown patches which represent sandy tracts or sand dunes in arid regions.

(ii) Mohan goes on a bicycle from 02 northing to 12 northing in a straight line. If he moves at a speed of 10 kilometers per hour, how much time will he take to reach his destination? [2 Marks]

Answer: 6 minutes.

Teacher's Note:
a) Distance between 02 northing and 12 northing = 10 grid squares = 10 cm on a standard 1:50,000 toposheet, which equals 5 km on the ground.
b) Time = Distance / Speed = 5 km / 10 km/h = 0.5 hours = 30 minutes. (Note: Depending on exact map scale interval, 1 grid division is 2 cm = 1 km; 10 divisions = 10 cm = 5 km. Time taken = 5 / 10 = 0.5 hours = 30 minutes, or if distance is taken as 10 km, time is 60 minutes. Standard calculation uses 2 cm per km).

(iii) (a) What is the compass direction of Rampura (2709) to Kotda (3005)? [2 Marks]

Answer: South-East.

Teacher's Note:
a) Direction is determined by drawing lines from the reference point to the target point and aligning with the 16-point or 8-point cardinal compass.
b) Ensure you check the coordinates correctly to avoid writing the exact opposite direction.

(iii) (b) What is the nature of streams seen in the map extract? [2 Marks]

Answer: Seasonal or intermittent streams.

Teacher's Note:
a) Streams in arid or semi-arid regions depicted with blue broken lines or dry river beds with water channels are seasonal.
b) Mentioning 'seasonal' or 'intermittent' fetches full credit; avoid writing 'perennial' unless blue continuous lines with wells are seen.

(iv) (a) Ramesh returned to his native place Mahudi Moti (2404) after a gap of ten years and was happy to see the development around his village. What according to you show that the area around his village has developed? [2 Marks]

Answer: Presence of improved means of transport (metalled roads), expanded settlements, and perennial irrigation sources like lined wells or tube wells.

Teacher's Note:
a) Look for infrastructural changes such as red cart tracks replaced by paved roads, electricity lines, or increased agricultural activity.
b) Answers must be derived directly from map evidence such as settlements and communication networks.

(iv) (b) What is the black vertical line made between the easting 25 and 26? [2 Marks]

Answer: Line of longitude (Meridian).

Teacher's Note:
a) Numbered grid lines running north-south are eastings, but specific marked lines indicate degrees and minutes of longitude.
b) Be precise in distinguishing between standard grid lines and latitudinal/longitudinal reference lines.

(v) Mention two man made and two natural features in the grid square 2508. [2 Marks]

Answer: Man-made features: Settlement, temple, or cart track; Natural features: Stream, broken ground, or tree/scrub.

Teacher's Note:
a) Man-made features are built or created by humans, while natural features are geographical landforms or water bodies.
b) Always write two distinct features for each category as requested by the question to secure full marks.

Question 2
On the outline map of India provided:

(i) Shade and label an alluvial soil area of India. [1 Mark]

Answer: The Northern Plains (Gangetic Plain) or coastal plains shaded and labelled as Alluvial Soil.

Teacher's Note:
a) Alluvial soil covers major parts of Punjab, Haryana, Uttar Pradesh, Bihar, and West Bengal.
b) Neat shading with a pencil or light colour and clear labeling inside or with an arrow is mandatory.

(ii) Mark with a dot and name the city which lies on the banks of river Jhelum. [1 Mark]

Answer: Srinagar.

Teacher's Note:
a) Srinagar is situated on the banks of the Jhelum River in the Kashmir Valley.
b) Marking must be precise using a clear dot accompanied by the exact name of the city.

(iii) Mark and name the highest peak of India. [1 Mark]

Answer: Godwin-Austen (K2).

Teacher's Note:
a) K2 is located in the Karakoram range and is the highest peak in India (Pakistan-administered Kashmir, claimed by India) and second highest in the world.
b) Do not confuse it with Kangchenjunga, which is the highest peak in the Himalayas lying wholly within India.

(iv) Shade and label Gulf of Kutch. [1 Mark]

Answer: The upper inlet of water indenting the coast of Gujarat.

Teacher's Note:
a) Gulf of Kutch lies to the north of the Saurashtra peninsula, while the Gulf of Khambhat lies to its east.
b) Accurate shading of the water body is required.

(v) Mark with arrow and label N E Monsoon wind. [1 Mark]

Answer: Arrows pointing from land towards the Bay of Bengal in a north-easterly to south-westerly direction across the eastern coast.

Teacher's Note:
a) North-East Monsoon winds blow from the land to sea during winter, bringing rainfall to the Tamil Nadu coast.
b) Arrow direction is crucial; pointing them in the reverse direction will result in loss of marks.

(vi) Shade and label a densely populated area in South India. [1 Mark]

Answer: Kerala coastal plain or Tamil Nadu plains.

Teacher's Note:
a) Southern coastal plains have high population density due to favorable agricultural and climatic conditions.
b) Clearly shade the region and label it correctly.

(vii) Mark and label Himalayas. [1 Mark]

Answer: Arc-shaped mountain range marked across the northern boundary of India.

Teacher's Note:
a) The Himalayas stretch from the Indus gorge in the west to the Brahmaputra gorge in the east.
b) The line or shading must follow the northern mountain arc.

(viii) Mark and label Brahmaputra. [1 Mark]

Answer: River entering Arunachal Pradesh, flowing through Assam and entering Bangladesh.

Teacher's Note:
a) Trace the river flowing from Tibet (Tsangpo) into Arunachal Pradesh (Dihang/Brahmaputra) and through the Assam valley.
b) Continuous blue line with an arrow indicating the flow direction is expected.

(ix) Mark and label Tropic of Cancer. [1 Mark]

Answer: Line of latitude at 23 degrees 30 minutes N passing through the middle of India.

Teacher's Note:
a) Tropic of Cancer passes through eight Indian states including Gujarat, Madhya Pradesh, Chhattisgarh, and Jharkhand.
b) Draw a clear dashed or solid line across the map at the correct latitude.

(x) Mark and label Malabar coast. [1 Mark]

Answer: The southern part of the western coastal plain (Kerala coast).

Teacher's Note:
a) Malabar Coast extends from Goa/Karnataka border down to Kanyakumari.
b) Distinguish it from the Konkan coast in the north and Coromandel coast in the east.

Question 3
Choose the correct answers to the questions from the given options.
(Do not copy the question, write the correct answers only.) [10 Marks]

(i) Which of the following is the CORRECT set of water bodies from which the Southwest monsoon picks up moisture? [1 Mark]
(A) Arabian sea + Bay of Bengal + Indian Ocean
(B) Indian Ocean + Andaman Sea + Arabian Sea
(C) Bay of Bengal + Indian Ocean + Andaman Sea
(D) Gulf of Mannar + Mediterranean Sea + Indian Ocean

Answer: (A) Arabian sea + Bay of Bengal + Indian Ocean

The southwest monsoon current divides into the Arabian Sea branch and the Bay of Bengal branch, both originating from the moisture-laden winds of the Indian Ocean.

Teacher's Note:
a) Understand the dual branch system of the southwest monsoon.
b) Option (A) correctly encompasses all primary moisture sources for the Indian summer monsoon.

(ii) Feel and consistency of soil is called _________ of the soil. [1 Mark]
(A) Profile
(B) Parent rock
(C) Texture
(D) Nature

Answer: (C) Texture

Soil texture refers to the relative proportions of sand, silt, and clay particles which determine its feel and consistency.

Teacher's Note:
a) Soil texture dictates water retention and aeration capacity.
b) Do not confuse texture with soil profile, which is the vertical section of soil layers.

(iii) Teak and Shisham are the typical trees of which of the following natural vegetation belt? [1 Mark]
(A) Tropical Evergreen
(B) Tropical Monsoon
(C) Tropical Desert
(D) Littoral forest

Answer: (B) Tropical Monsoon

Teak and Shisham are commercially valuable deciduous trees found in tropical monsoon (deciduous) forests.

Teacher's Note:
a) Tropical monsoon forests shed their leaves during the dry season.
b) Memorize key tree species for each vegetation type as direct questions are frequent.

(iv) Which of the following may be used for the recharging of underground water? [1 Mark]
(A) Planting of shelter belt
(B) Gullies and ravines
(C) Percolation pit
(D) Commercial farming

Answer: (C) Percolation pit

Percolation pits allow rainwater to seep directly into the ground, thereby recharging groundwater aquifers.

Teacher's Note:
a) Rainwater harvesting and percolation pits are vital water conservation techniques.
b) Shelter belts prevent soil erosion, while gullies represent advanced soil erosion.

(v) Which type of coal is called an industrial coal? [1 Mark]
(A) Peat
(B) Lignite
(C) Bituminous
(D) Anthracite

Answer: (C) Bituminous

Bituminous coal is the most widely used coal in industries, particularly for metallurgy and thermal power generation.

Teacher's Note:
a) Bituminous coal has high calorific value and burns with smoke, making it ideal for industrial use.
b) Anthracite is the highest quality coal but is rare and expensive.

(vi) Maharashtra is the leading producer of which of the following cash crop? [1 Mark]
(A) Jute
(B) Cotton
(C) Coffee
(D) Tea

Answer: (B) Cotton

Maharashtra, along with Gujarat, is a leading producer of cotton due to the presence of black regur soil.

Teacher's Note:
a) Cotton requires frost-free days and black soil.
b) Jute is primarily produced in West Bengal; tea in Assam; coffee in Karnataka.

(vii) Which crop is associated with Ratooning? [1 Mark]
(A) Sugarcane
(B) Jute
(C) Rice
(D) Cotton

Answer: (A) Sugarcane

Ratooning is a method of harvesting sugarcane where the crop is cut leaving the roots intact to sprout for the next harvest.

Teacher's Note:
a) Ratooning saves cost and time on replanting.
b) This is a standard agricultural term specific to sugarcane cultivation.

(viii) Which steel plant amongst the following was set up with the collaboration with Germany? [1 Mark]
(A) Bhilai
(B) Tata Steel
(C) Vishakhapatnam
(D) Rourkela

Answer: (D) Rourkela

Rourkela Steel Plant in Odisha was established with West German collaboration.

Teacher's Note:
a) Bhilai was set up with USSR assistance, and Durgapur with British assistance.
b) Memorize foreign collaborations for all major public sector steel plants in India.

(ix) Which is the busiest artificial port of India? [1 Mark]
(A) Goa
(B) Mumbai
(C) Chennai
(D) Vishakhapatnam

Answer: (C) Chennai

Chennai Port is an artificial harbour on the east coast and is one of the busiest ports in India.

Teacher's Note:
a) Mumbai is a natural harbour, whereas Chennai is an artificial open-roadstead port.
b) Read questions carefully to distinguish between natural and artificial ports.

(x) What is the depletion of oxygen in a water body resulting from pollution called? [1 Mark]
(A) Decay of water
(B) Eutrophication
(C) Bio magnification
(D) Greenhouse effect

Answer: (B) Eutrophication

Eutrophication is the enrichment of water bodies with nutrients leading to excessive algal growth and subsequent depletion of dissolved oxygen.

Teacher's Note:
a) Eutrophication results in aquatic life suffocation due to oxygen depletion.
b) Biomagnification refers to the accumulation of toxic substances in food chains.

PART II (50 Marks)

(Attempt any five questions from this Part.)

Question 4
(i) The southwest monsoon is late this year. The Indian Meteorological Department (IMD) on Tuesday, May 16, had predicted that the onset of southwest monsoon is delayed by four days. An agricultural economy, India is heavily reliant on the monsoon which brings 75 percent of its annual rainfall. - Indian Express

(a) As a student of Geography, what according to you may be the reason for the delay of monsoon? [2 Marks]

Answer: Factors like El Nino events, changes in pressure gradients over the Indian Ocean, or anomalous upper-air circulation patterns (jet streams) can delay the onset of the monsoon.

Teacher's Note:
a) El Nino disrupts normal atmospheric conditions and weakens monsoon winds.
b) Link climatic anomalies correctly to ocean-atmospheric interactions.

(i) (b) What is the usual time for the onset of summer monsoon in Kerala? [2 Marks]

Answer: Around 1st June.

Teacher's Note:
a) The southern tip of the Indian peninsula (Kerala) experiences the first landfall of the southwest monsoon.
b) Mention the exact date range (late May to 1st June) for complete accuracy.

(ii) What is the source of winter rainfall in the following areas? [2 Marks]

(a) Punjab

(b) Tamil Nadu

Answer:
(a) Punjab: Temperate cyclones (Western Disturbances) originating in the Mediterranean region.
(b) Tamil Nadu: North-East Monsoon winds picking up moisture from the Bay of Bengal.

Teacher's Note:
a) Western disturbances are crucial for Rabi crops like wheat in North-West India.
b) North-East monsoon brings winter rainfall to the southeastern coast of India.

(iii) Give a reason for each of the following: [3 Marks]

(a) West Bengal gets rainfall from summer monsoons much before Uttar Pradesh.

(b) Mawsynram is the rainiest place in the world

(c) Himalayas act as a climate divide

Answer:
(a) The Bay of Bengal branch of the southwest monsoon strikes the eastern coast and moves north-westwards, reaching West Bengal earlier than Uttar Pradesh.
(b) Mawsynram is located in the funnel-shaped Khasi hills of Meghalaya, which forces moisture-laden winds to rise and condense heavily.
(c) The Himalayas block freezing winds from Central Asia from entering India and trap the monsoon winds within the subcontinent.

Teacher's Note:
a) Geographic location and relief features dictate the path and intensity of rainfall.
b) Clear geographical reasoning is required for all sub-parts.

(iv) Study the climatic data of station X and answer the following questions: [3 Marks]

(a) What is the annual range of temperature of station X?

(b) Which is the driest month?

(c) Name the wind that brings maximum rainfall to this station.

Answer:
(a) Maximum temperature = 33.1 ^oC (July), Minimum temperature = 23.1 ^oC (January). Annual range = 33.1 - 23.1 = 10.0 ^oC.
(b) April (Rainfall = 0.1 cm).
(c) North-East Monsoon (since maximum rainfall occurs in Oct-Jan).

Teacher's Note:
a) Annual range of temperature is calculated as Highest Temperature minus Lowest Temperature.
b) Analyse rainfall distribution across months to identify whether a station experiences winter rainfall (indicating Coromandel coast characteristics).

Question 5
(i) Define the following terms: [2 Marks]

(a) Soil Fertility

(b) Soil conservation

Answer:
(a) Soil fertility is the inherent capacity of soil to provide essential nutrients in adequate amounts and proper proportions for plant growth.
(b) Soil conservation refers to the protection of soil against erosion and depletion to maintain its fertility and productivity.

Teacher's Note:
a) Definitions must be precise and scientifically accurate.
b) Distinguish clearly between soil fertility (nutritional capacity) and soil texture or profile.

(ii) With reference to soil erosion in India answer the following questions. [2 Marks]

(a) State any two human activities that have led to soil erosion in India.

(b) Mention any two agricultural techniques that can help to prevent soil erosion.

Answer:
(a) Deforestation and overgrazing.
(b) Contour ploughing and terrace farming.

Teacher's Note:
a) Anthropogenic factors accelerate natural erosion rates.
b) Conservation techniques are crucial for sustainable agriculture in hilly and arid regions.

(iii) With reference to Red Soil, answer the following: [3 Marks]

(a) How is it formed?

(b) Why is it good for Dry Farming?

(c) Name any two areas where it is found.

Answer:
(a) Formed by the decomposition of ancient crystalline and metamorphic rocks under low rainfall conditions.
(b) It requires less moisture and can retain moisture well when treated with fertilizers, making it suitable for dry farming.
(c) Tamil Nadu and Karnataka (or parts of Odisha and Jharkhand).

Teacher's Note:
a) Red soil gets its colour from iron oxide diffusion.
b) It is deficient in nitrogen, humus, and phosphoric acid.

(iv) Give a reason for the following statements: [3 Marks]

(a) Black Soil has self-ploughing property.

(b) Laterite Soil is not suitable for cultivation.

(c) Alluvial soil is the most fertile soil.

Answer:
(a) Black soil develops deep cracks when dry and becomes sticky when wet, causing natural mixing or self-ploughing.
(b) Laterite soil is acidic, highly porous, and suffers from rapid leaching of nutrients due to heavy rainfall.
(c) Alluvial soil is constantly replenished by river silt brought down during floods, making it rich in minerals like potash and lime.

Teacher's Note:
a) Each soil type has distinct physical and chemical properties.
b) Use scientific terms like 'leaching' and 'self-ploughing' in your answers.

Question 6
(i) Mahesh went for an excursion with his friend and came across a marshy area with the trees that had stilt like roots. [2 Marks]

(a) Which natural vegetation belt did he come across?

(b) Name one area in India where this kind of vegetation is found.

Answer:
(a) Littoral or Mangrove forest (Tidal forest).
(b) Sundarbans in West Bengal (or Andaman and Nicobar Islands).

Teacher's Note:
a) Mangrove roots (pneumatophores/stilt roots) help trees breathe in waterlogged saline soils.
b) Sundarbans is the world's largest deltaic mangrove forest.

(ii) (a) Why is tropical deciduous forest commercially the most important forest belt of India? [2 Marks]

(b) Why are long and deep roots a typical characteristic of desert vegetation?

Answer:
(a) They contain valuable commercial timber trees like teak and sal, which grow in pure stands and are accessible.
(b) Long and deep roots help plants search for groundwater deep underground in arid regions with scanty rainfall.

Teacher's Note:
a) Deciduous forests yield strong, durable hardwood used in construction and furniture.
b) Xerophytic adaptations include deep roots, waxy leaves, and thorns.

(iii) Why is forest conservation the need of the hour? (Three points) [3 Marks]

Answer:
1. To maintain ecological balance and preserve biodiversity.
2. To prevent soil erosion and regulate the water cycle.
3. To mitigate global warming by absorbing carbon dioxide and releasing oxygen.

Teacher's Note:
a) Forests are renewable resources that require sustainable management.
b) Write three distinct, well-explained points for full marks.

(iv) (a) Name a forest conservation method that involves the local community. [3 Marks]

(b) Which primitive system of agriculture had led to large scale destruction of forest in the past?

(c) Name the process which involves planting two saplings for each tree that is felled.

Answer:
(a) Joint Forest Management (JFM) or Social Forestry.
(b) Jhum cultivation (Shifting agriculture).
(c) Afforestation (specifically compensatory afforestation or Van Mahotsav).

Teacher's Note:
a) Community participation is vital for successful forest conservation.
b) Shifting agriculture leads to deforestation and soil degradation in hilly tracts.

Question 7
(i) Why is there a need for irrigation in India? (Two reasons) [2 Marks]

Answer:
1. Rainfall in India is seasonal, uncertain, and unevenly distributed.
2. Cultivation of high-yielding crop varieties requires regular and controlled water supply throughout the year.

Teacher's Note:
a) Indian agriculture is termed a 'gambler's game with the monsoon'.
b) Artificial irrigation ensures multiple cropping and food security.

(ii) Distinguish between Inundation Canals and Perennial Canals. [2 Marks]

Answer:

Teacher's Note:
a) Perennial canals are more reliable and widely used in modern Indian agriculture.
b) Present differences in a clear tabular format.

(iii) Name a state in India where tube wells are commonly used. Give two reasons to support your answer. [3 Marks]

Answer:
State: Punjab (or Uttar Pradesh, Haryana).
Reasons:
1. Presence of soft alluvial soil which makes digging tube wells easy and economical.
2. Abundant groundwater reserves and reliable electricity supply for running water pumps.

Teacher's Note:
a) Tube wells are the leading source of irrigation in Northern India.
b) Ensure you name the state and provide two valid geographical reasons.

(iv) (a) What is meant by Rainwater Harvesting? [3 Marks]

(b) Mention any two water harvesting practices followed in India.

Answer:
(a) Rainwater harvesting is the collection and storage of rainwater from rooftops or surface run-off for future use and groundwater recharge.
(b) Two practices: Rooftop rainwater harvesting and construction of percolation pits or Johads/Tanks.

Teacher's Note:
a) Water harvesting is essential to combat water scarcity in urban and rural areas.
b) Mention traditional and modern methods for clarity.

Question 8
(i) (a) Give any one use of Iron ore. [2 Marks]

(b) Name two Indian states where copper is found.

Answer:
(a) Used for manufacturing steel, machinery, tools, and construction materials.
(b) Madhya Pradesh and Rajasthan.

Teacher's Note:
a) Iron ore is the backbone of modern industrial development.
b) Copper is a good conductor of electricity and is widely used in electrical industries.

(ii) With reference to Hirakud project answer the following: [2 Marks]

(a) On which river is it based?

(b) Name an Indian state benefited by the project.

Answer:
(a) Mahanadi River.
(b) Odisha.

Teacher's Note:
a) Hirakud Dam is one of the longest mainstream earthen dams in the world.
b) Multi-purpose river valley projects provide flood control, irrigation, and hydel power.

(iii) (a) Give two disadvantages of using Petroleum as a source of power. [3 Marks]

(b) Name an offshore oil field of India.

Answer:
(a)
1. It is a non-renewable fossil fuel that causes air pollution when burnt.
2. India depends heavily on imports, making it economically expensive.
(b) Mumbai High.

Teacher's Note:
a) Petroleum and its products emit greenhouse gases contributing to global warming.
b) Mumbai High in the Arabian Sea is India's premier offshore petroleum field.

(iv) (a) Mention two advantages of wind energy. [3 Marks]

(b) What is the advantage of using nuclear power in place of conventional sources of energy?

Answer:
(a)
1. It is a clean, renewable, and pollution-free source of energy.
2. Low recurring costs after initial installation.
(b) Nuclear power produces a massive amount of energy from a very small quantity of radioactive fuel.

Teacher's Note:
a) Renewable energy sources are vital for sustainable development.
b) Nuclear power helps reduce carbon footprints compared to thermal power plants.

Question 9
(i) Mention two agricultural reforms done by the government for the betterment of the agricultural sector. [2 Marks]

Answer:
1. Provision of institutional credit through Kisan Credit Cards and rural banks.
2. Establishment of regulated markets and cooperative marketing societies to ensure fair prices for farmers.

Teacher's Note:
a) Government reforms aim to protect farmers from exploitation and enhance agricultural productivity.
b) Mentioning land reforms or technical reforms (HYV seeds, irrigation) is also accepted.

(ii) (a) Mention the climatic conditions found suitable for growing groundnut. [2 Marks]

(b) Name the state that is the leading producer of groundnut in India.

Answer:
(a) Temperature between 20 ^oC to 25 ^oC and moderate rainfall between 50 cm to 75 cm.
(b) Gujarat.

Teacher's Note:
a) Groundnut is a major oilseed crop grown mostly in semi-arid tropical regions.
b) Well-drained sandy loams or black soils are ideal for groundnut cultivation.

(iii) With reference to cultivation of pulses answer the following: [3 Marks]

(a) Name a soil found suitable for the growth of pulses.

(b) Name any two pulses grown in India.

(c) Why is it a popular food crop of India?

Answer:
(a) Dry light alluvial or sandy loams.
(b) Gram (Chana) and Tur (Arhar).
(c) Pulses are a rich source of plant protein, forming a staple part of the vegetarian Indian diet, and they fix atmospheric nitrogen in the soil.

Teacher's Note:
a) Pulses are leguminous crops that help restore soil fertility naturally.
b) They require less water and can thrive in dry farming conditions.

(iv) Rohan is a farmer. He asked his friend to help him get some labourers for 'GINNING'. [3 Marks]

(a) Which crop do you think is grown by Rohan?

(b) Mention any two climatic conditions suitable for this crop.

Answer:
(a) Cotton.
(b) Climatic conditions: High temperature (21 ^oC to 27 ^oC) and at least 200 frost-free days.

Teacher's Note:
a) Ginning is the process of separating cotton seeds from cotton fibers.
b) Cotton requires moderate rainfall (50-100 cm) and bright sunshine during harvest.

Question 10
(i) Differentiate between large scale and small-scale industries. [2 Marks]

Answer:

Teacher's Note:
a) Capital investment limits define the scale of industries.
b) Small scale industries are labour-intensive and generate high employment in India.

(ii) Give two ways in which the Electronic Industry is important for India. [2 Marks]

Answer:
1. It provides critical hardware and software support for information technology and telecommunications.
2. It generates massive employment for skilled engineers and technicians and contributes to exports.

Teacher's Note:
a) Electronics is a sunrise industry in India.
b) Focus on technological advancement and employment generation.

(iii) With reference to petrochemical industry answer the following: [3 Marks]

(a) Why is it becoming popular in recent times?

(b) Why is it located close to oil refineries?

(c) Name any two petrochemical products.

Answer:
(a) Petrochemical products are durable, lightweight, corrosion-resistant, and serve as cheaper substitutes for natural materials like wood and metals.
(b) To ensure an uninterrupted supply of raw materials (by-products of petroleum refining) and reduce transportation costs.
(c) Plastics (Polythene) and synthetic rubber (or synthetic fibers like nylon).

Teacher's Note:
a) Petrochemical industries depend directly on petroleum refineries.
b) Plastics and synthetic textiles have revolutionized modern manufacturing.

(iv) (a) Name the country that had helped in the establishment of Bhilai steel plant. [3 Marks]

(b) Why is the iron and steel industry called a basic or key industry?

(c) Where is Tata Steel located?

Answer:
(a) USSR (Soviet Union).
(b) Because its products serve as raw materials for almost all other manufacturing industries, such as heavy machinery and construction.
(c) Jamshedpur (Sakchi) in Jharkhand.

Teacher's Note:
a) Iron and steel production is an index of a country's industrial progress.
b) Memorize locations and foreign collaborations for all major Indian steel plants.

Question 11
(i) Mention two advantages of using waterways. [2 Marks]

Answer:
1. It is the cheapest mode of transport for bulky and heavy goods over long distances.
2. It does not require capital expenditure on track construction and maintenance.

Teacher's Note:
a) Water transport is eco-friendly and fuel-efficient.
b) It is limited by natural navigability and seasonal water availability.

(ii) What is the importance of the Golden Quadrilateral? [2 Marks]

Answer:
It connects India's four major metropolitan cities (Delhi, Mumbai, Chennai, and Kolkata), reducing travel time and boosting economic trade across the country.

Teacher's Note:
a) The Golden Quadrilateral is a highway network managed by NHAI.
b) Mention the four terminal cities to secure full marks.

(iii) Mention three disadvantages of roadways. [3 Marks]

Answer:
1. Prone to traffic congestion, accidents, and delays.
2. High maintenance cost during heavy monsoon seasons and floods.
3. Cannot economically carry extremely heavy or bulky goods over very long trans-continental distances compared to railways.

Teacher's Note:
a) Roadways offer door-to-door service but have severe limitations in capacity and safety.
b) Write three clear disadvantages for complete marks.

(iv) Give a reason for the following: [3 Marks]

(a) Railways are well developed in the northern states of India.

(b) Sea transport has lost its popularity in recent times.

(c) Helicopter services are crucial during emergencies.

Answer:
(a) Northern plains have flat, level terrain, dense population, and high agricultural-industrial activity, making railway construction easy and profitable.
(b) Sea transport is slow compared to airways and faster shipping methods, though it remains vital for bulky cargo.
(c) Helicopters can land in remote, inaccessible, or disaster-struck areas (like flooded regions or mountains) where other vehicles cannot reach.

Teacher's Note:
a) Topography directly influences transport network density.
b) Helicopters play an invaluable role in disaster management and rescue operations.

Question 12
(i) What is the impact for waste generation on the following? [2 Marks]

(a) Surface water

(b) Landscape.

Answer:
(a) Surface water: Causes severe water pollution, eutrophication, and spreads water-borne diseases.
(b) Landscape: Results in ugly garbage dumps, land degradation, and loss of aesthetic beauty.

Teacher's Note:
a) Improper waste disposal affects all components of the environment.
b) Keep answers concise and direct for each sub-part.

(ii) Why is dumping considered a harmful method of waste disposal? (Two points.) [2 Marks]

Answer:
1. Open dumps attract pests, flies, and stray animals, spreading infectious diseases.
2. Toxic leachates from dumps seep into the soil and contaminate groundwater aquifers.

Teacher's Note:
a) Open dumping is an unscientific method of waste disposal.
b) Sanitary landfills are preferred over open dumping.

(iii) A fire broke out at the Kochi city corporation-run waste treatment plant. Thick clouds of toxic smoke engulfed the city. The unsorted waste at the plant contained PVC and clinical waste, both of which on combustion are extremely harmful for the general health of people. - Economic times [3 Marks]

(a) Which method of waste management would have helped in reducing health hazard in the above case?

(b) What measures may be undertaken by individuals to reduce waste?

(c) How can urban waste be made useful?

Answer:
(a) Segregation of waste at source and safe recycling or incineration under controlled conditions.
(b) Practising the 3Rs (Reduce, Reuse, Recycle), avoiding single-use plastics, and composting organic kitchen waste.
(c) Urban waste can be converted into compost, used for generating biogas/electricity in waste-to-energy plants, or recycled into new products.

Teacher's Note:
a) Case-based questions test applied environmental awareness.
b) Segregation of biodegradable and non-biodegradable waste is the cornerstone of municipal waste management.

(iv) Mention three ways to reuse waste that is generated at home. [3 Marks]

Answer:
1. Using empty glass jars and plastic bottles for storing dry goods or as planters.
2. Donating old clothes, books, and furniture to the needy.
3. Using vegetable and fruit peelings to prepare organic compost for home gardens.

Teacher's Note:
a) Reusing items extends their lifecycle and minimizes household waste generation.
b) Give practical, everyday examples to score maximum marks.