This MCQ module is based on: Water Scarcity & Need for Conservation Class 10 NCERT Geography Ch 3 Part 1
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Water Scarcity & Need for Conservation Class 10 NCERT Geography Ch 3 Part 1
🎓 Class 10
Social Science
CBSE
Theory
Ch 3 — Water Resources
⏱ ~15 min
🌐 Language: [gtranslate]
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Water Scarcity & the Need for Conservation
NCERT Contemporary India-II | Chapter 3: Water Resources
Why Is Water Abundant Yet Scarce on Earth?
About three-fourths of the Earth's surface is covered by water, yet only a tiny fraction of this vast quantity is available as freshwater? fit for human use. This usable freshwater comes primarily from surface run-off and groundwater sources, both of which are continuously renewed through the hydrological cycle?. Since water circulates through this natural cycle of evaporation, condensation, precipitation, and collection, it is technically a renewable resource.
Yet despite its abundance and renewability, many countries and regions across the globe face severe water shortages. Experts predict that by 2025, close to two billion people could be living under conditions of absolute water scarcity. How can a planet awash with water still face such a crisis?
Definition
Hydrological Cycle: The continuous movement of water through the atmosphere, land surfaces, and underground. Water evaporates from oceans and lakes, forms clouds, falls as precipitation (rain or snow), flows across land as run-off, seeps into the ground, and eventually returns to oceans — completing the cycle and ensuring water is a renewable resource.
What Are the Main Causes of Water Scarcity in India?
When we think of water shortages, we typically picture arid desert regions or drought-affected areas like parts of Rajasthan, where women walk long distances carrying earthen pots to collect water. However, water scarcity? is not limited to regions with low rainfall. It can occur even in areas that receive abundant precipitation.
The availability of water resources varies considerably across space and time, driven by seasonal and annual changes in precipitation patterns. But the root causes of water scarcity go far beyond mere rainfall variations.
Causes of Water Scarcity
Over-exploitation
Groundwater and surface water resources are being drawn faster than they can be naturally replenished, especially for irrigation.
Industrialisation
Post-independence India saw rapid industrial growth. Industries consume huge volumes of water and also need hydroelectric power, placing additional strain on water resources.
Urbanisation
Expanding cities with dense populations and modern lifestyles demand more water for domestic use. Many housing colonies pump groundwater independently, depleting aquifers.
Water Pollution
Even where water is physically available, domestic sewage, industrial waste, pesticides, and fertilisers contaminate it, rendering it unfit for human consumption.
Population Growth and Agriculture
A large and growing population needs more water not only for household purposes but also to produce sufficient food grains. To meet food demands, irrigated agriculture? has expanded enormously, making it the single largest consumer of water in India. Many farmers have installed their own wells and tube-wells to increase crop yields during dry seasons. While this boosts short-term production, it has led to a dangerous decline in groundwater levels across many regions.
Key Concern
Falling groundwater tables caused by over-pumping for irrigation can adversely affect both water availability and food security in the long run. The very practice meant to increase food production could ultimately undermine it.
Industrialisation and Urban Demand
Post-independence India saw intensive industrialisation that created vast economic opportunities. Today, large industrial units — including those of multinational corporations (MNCs) — are commonplace across the country. These industries are heavy consumers of freshwater and also need significant power, much of which comes from hydroelectric sources. The cumulative pressure on freshwater resources from industry has been enormous.
Rapidly multiplying urban centres, with their dense populations and modern lifestyles, have added further to water and energy demands. In many cities, housing societies and residential colonies operate their own groundwater pumping systems to ensure adequate supply. This unchecked extraction has led to the depletion of fragile water resources in numerous urban areas.
Water Quality — The Overlooked Dimension
Water scarcity is not solely about quantity. In many areas, sufficient water may be physically available, yet it remains unusable because of poor quality. Domestic and industrial effluents, chemicals, pesticides, and agricultural fertilisers pollute rivers, lakes, and groundwater, making water hazardous for human use. This qualitative dimension of water scarcity is an increasingly serious concern.
Government Initiative
Jal Jeevan Mission (JJM): The Government of India launched this mission to provide every rural household with assured piped drinking water supply at a rate of 55 litres per person per day on a long-term, sustainable basis. The programme aims to improve the quality of life in rural areas through reliable access to potable water.
Government Initiative
Atal Bhujal Yojana (Atal Jal): This scheme is being implemented in 8,220 water-stressed Gram Panchayats across 80 districts in seven states (Gujarat, Haryana, Karnataka, Madhya Pradesh, Maharashtra, Rajasthan, and Uttar Pradesh). These states account for about 37 per cent of India's water-stressed blocks. A key objective is to shift community attitudes from consumption to conservation and smart water management.
Why Is Water Conservation Important for India's Future?
The urgent need to conserve and manage water arises from multiple interconnected concerns:
Health Safety
Polluted water causes waterborne diseases. Conservation helps safeguard communities from health hazards.
Food Security
Agriculture is the largest water consumer. Ensuring sustainable water availability is essential for continued food production.
Livelihoods
Millions depend on water for farming, fishing, and industrial employment. Water depletion threatens these productive activities.
Ecological Balance
Over-exploitation and mismanagement of water degrades natural ecosystems, potentially triggering ecological crises with profound impacts on life.
Modern agriculture also requires a revolution in approach. Developing drought-resistant crop varieties and dry farming techniques has become essential to reduce the dependence on irrigation and conserve precious water resources.
India's Water Usage — Sector-wise Breakdown
L4 AnalyseAgriculture is the dominant consumer, using roughly 80% of India's total water resources. Industry and domestic use account for the remaining share.
THINK ABOUT IT — Water Conservation Proposal
L6 Create
The textbook asks you to write a short proposal on how you can conserve water based on your everyday experiences. Consider the following:
- How much water does your household use daily? Where is most of it consumed?
- What wasteful practices have you observed in your neighbourhood?
- What simple, actionable steps could reduce water consumption at home and school?
- How can you encourage others to adopt water-saving habits?
Guidance
Your proposal could include measures such as: fixing leaky taps, using bucket baths instead of showers, reusing kitchen water for gardening, adopting drip irrigation for home gardens, collecting rainwater, using water-efficient appliances, spreading awareness in your community, and reporting water wastage to local authorities. The key is to move from a mindset of unlimited consumption to conscious conservation.
LET'S EXPLORE — Industrial Water Pollution
L3 Apply
The textbook directs you to collect information about how industries are polluting water resources in India.
- Identify two or three major industries in your state or region.
- Research what type of pollutants these industries release into water bodies.
- Find out what regulations exist to control industrial water pollution.
- Are these regulations being effectively enforced?
Guidance
Major water-polluting industries in India include textile dyeing, tanneries, paper mills, sugar factories, and chemical plants. They release effluents containing heavy metals, dyes, acids, and organic waste. The Water (Prevention and Control of Pollution) Act, 1974, along with the Central Pollution Control Board (CPCB) and State Pollution Control Boards, regulate industrial discharge. However, enforcement remains a challenge in many areas.
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Competency-Based Questions
Case Study: District Y receives over 1,200 mm of annual rainfall and has two perennial rivers flowing through it. Despite this abundance, residents in 60% of the villages report severe water shortages during the summer months. Water tankers are called in every year. Meanwhile, a large sugar factory and several textile units discharge effluents into the rivers. The groundwater table has fallen by 15 metres in the last two decades due to unchecked tube-well irrigation.
Q1. Which of the following best explains why District Y faces water scarcity despite high rainfall?
L3 Apply
Q2. Analyse the relationship between groundwater exploitation and food security in District Y.
L4 Analyse
Q3. Evaluate the argument that water pollution is as serious a threat as water depletion.
L5 Evaluate
HOT Q. Design a comprehensive water management plan for District Y that addresses both the quantity and quality problems identified in the case study.
L6 Create
⚖ Assertion–Reason Questions
Assertion (A): Water is considered a renewable resource.
Reason (R): Water moves continuously through the hydrological cycle of evaporation, condensation, and precipitation.
Reason (R): Water moves continuously through the hydrological cycle of evaporation, condensation, and precipitation.
Assertion (A): Many Indian cities with ample rainfall still face water scarcity.
Reason (R): Rapid urbanisation has led to unchecked groundwater extraction and contamination of surface water by domestic and industrial waste.
Reason (R): Rapid urbanisation has led to unchecked groundwater extraction and contamination of surface water by domestic and industrial waste.
Assertion (A): Irrigated agriculture plays no role in causing water scarcity.
Reason (R): Agriculture is the largest consumer of water in India, and over-exploitation for irrigation has lowered groundwater tables in many regions.
Reason (R): Agriculture is the largest consumer of water in India, and over-exploitation for irrigation has lowered groundwater tables in many regions.
Continue Learning — Chapter 3: Water Resources
Frequently Asked Questions
What is water scarcity and what causes it?
Water scarcity refers to the shortage of freshwater resources to meet the demands of a region. In India, water scarcity is caused by growing population, increasing demand for agriculture and industry, unequal distribution of water resources, over-exploitation of groundwater, and pollution of rivers and lakes. The NCERT textbook explains that even areas with abundant rainfall may face water scarcity due to mismanagement and wastage. Urbanisation and industrialisation further strain the limited freshwater supply available.
How much of Earth's water is freshwater?
Only about 2.5% of Earth's total water is freshwater, and most of that is locked in ice caps and glaciers. Only about 0.3% of the total freshwater is available in rivers, lakes, and underground aquifers for human use. India receives substantial annual rainfall, but due to uneven distribution and poor storage infrastructure, many regions experience water stress. The NCERT textbook emphasises this paradox of abundance and scarcity in the context of India's growing water needs.
Why is water conservation necessary in India?
Water conservation is necessary in India because the per capita availability of freshwater is declining rapidly due to population growth. India uses about 80% of its water for agriculture, and growing urbanisation demands more water for domestic and industrial use. Groundwater levels are falling in many states including Punjab, Haryana, and Rajasthan. Without conservation, India faces the risk of severe water crisis affecting food security, health, and economic development.
What is the role of agriculture in water scarcity?
Agriculture is the single largest consumer of water in India, using approximately 80% of all freshwater resources. Flood irrigation methods used in rice and sugarcane farming waste enormous quantities of water. The Green Revolution promoted water-intensive crops in semi-arid regions like Punjab and Haryana, accelerating groundwater depletion. Converting to efficient irrigation methods like drip and sprinkler systems, and growing water-efficient crops, can significantly reduce agricultural water demand.
How does industrialisation cause water scarcity?
Industrialisation contributes to water scarcity in two ways: industries consume large volumes of freshwater for manufacturing processes, and they discharge polluted water into rivers and lakes, reducing available clean water. The NCERT textbook explains that industrial effluents contain toxic chemicals that make water unfit for drinking and irrigation. Rapid urbanisation accompanying industrialisation further increases domestic water demand, putting additional pressure on limited freshwater resources.
What percentage of India's freshwater is used by agriculture?
Agriculture accounts for approximately 80% of India's total freshwater consumption, making it by far the largest water-using sector. The remaining water is split between domestic use (about 10%) and industrial use (about 10%). This heavy agricultural dependence makes water management in farming crucial. The NCERT textbook advocates for modern irrigation techniques and water-efficient cropping patterns to reduce wastage while maintaining food production levels.
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Social Science Class 10 — Contemporary India II (Geography)
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