Water Resources Class 10 MCQs with Answers

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CBSE Class 10 Geography • Chapter 3 • 2026–27

Water Resources Class 10 MCQs with Answers

90 original multiple-choice questions covering water scarcity, conservation and management, multipurpose river projects, dams, rainwater harvesting, map work and competency-based application.

How to use this page: Attempt each MCQ before checking the answer. Then read the explanation to strengthen the underlying concept rather than memorising the option letter.

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90 Water Resources MCQs

This practice set moves from core concepts to application and tests why water scarcity occurs, how conservation works, how multipurpose projects function and how rainwater harvesting can support water security.

Biodiversity, Water Basics and Scarcity

Question 1

Which statement best explains why water is called a renewable resource?

A. It is produced by industries

B. It is continuously renewed through the hydrological cycle

C. It is found only underground

D. It can never become scarce

Answer: B

Explanation: Water is renewed through evaporation, condensation and precipitation in the hydrological cycle.

Question 2

What does water scarcity mean?

A. A region has no rivers

B. Usable water is insufficient relative to requirements

C. Only groundwater is available

D. Rainfall occurs every year

Answer: B

Explanation: Water scarcity occurs when available usable water does not adequately meet demand.

Question 3

Which factor can increase water scarcity even where rainfall is adequate?

A. Low population only

B. Over-extraction of groundwater

C. More forest cover

D. Reduced irrigation demand

Answer: B

Explanation: Excessive withdrawal can reduce usable supplies despite rainfall.

Question 4

Which sector generally requires large quantities of water for crop production?

A. Agriculture

B. Banking

C. Publishing

D. Retail

Answer: A

Explanation: Irrigated agriculture can require substantial quantities of freshwater.

Question 5

What is groundwater recharge?

A. Removal of groundwater

B. Replenishment of underground water stores

C. Conversion of water into salt

D. Pumping water from wells

Answer: B

Explanation: Recharge occurs when water infiltrates and replenishes groundwater stores.

Question 6

Which process is central to the natural renewal of water?

A. Hydrological cycle

B. Industrialisation

C. Urbanisation

D. Deforestation only

Answer: A

Explanation: The hydrological cycle circulates water through evaporation, condensation, precipitation and related processes.

Question 7

Which of the following can make freshwater unusable?

A. Pollution

B. Rainfall

C. Recharge

D. Storage

Answer: A

Explanation: Pollution can reduce water quality and the amount suitable for use.

Question 8

Why can population growth increase water scarcity?

A. It reduces all water use

B. It increases domestic and productive demand

C. It stops groundwater recharge

D. It eliminates irrigation

Answer: B

Explanation: A larger population requires more water for domestic needs, food production and economic activities.

Question 9

Which activity can directly increase groundwater depletion?

A. Excessive pumping

B. Rainwater harvesting

C. Afforestation

D. Watershed protection

Answer: A

Explanation: Pumping groundwater faster than recharge can lower the water table.

Question 10

Which statement about rainfall and water availability is correct?

A. Rainfall alone guarantees water security

B. Usable water also depends on demand, quality, storage and distribution

C. Rainfall has no role

D. Only groundwater matters

Answer: B

Explanation: Water security depends on more than rainfall.

Question 11

Which is a major cause of water pollution?

A. Untreated sewage

B. Groundwater recharge

C. Rainwater storage

D. Efficient irrigation

Answer: A

Explanation: Untreated sewage can contaminate water bodies.

Question 12

Water scarcity is best understood as a problem of:

A. Only climate

B. Supply, demand, quality and management

C. Only population

D. Only dams

Answer: B

Explanation: Water scarcity has multiple physical and human causes.

Question 13

Which human activity can increase water demand in cities?

A. Urbanisation

B. Reduced settlement

C. Lower industrial activity

D. Reduced population

Answer: A

Explanation: Urbanisation raises domestic, commercial and municipal demand.

Question 14

Why is water quality important for water security?

A. Polluted water may not be safely usable

B. Quality never affects use

C. Only oceans need quality

D. Pollution increases usable water

Answer: A

Explanation: Physical presence does not mean water is suitable for use.

Question 15

Which practice helps reduce unnecessary water use?

A. Efficient irrigation

B. Uncontrolled pumping

C. Open leakage

D. Untreated discharge

Answer: A

Explanation: Efficient irrigation can reduce water losses and improve water-use efficiency.

Question 16

Which statement is correct about freshwater?

A. All water on Earth is directly usable

B. Usable freshwater is limited and unevenly distributed

C. Seawater is always suitable for drinking

D. Freshwater never becomes polluted

Answer: B

Explanation: Accessible freshwater is limited and unevenly distributed.

Question 17

What can happen when groundwater extraction exceeds recharge for a long period?

A. Water table may fall

B. Groundwater automatically increases

C. Rainfall stops permanently

D. All rivers become larger

Answer: A

Explanation: Over-extraction can lower groundwater levels.

Question 18

Which is an example of water demand?

A. Domestic use

B. Only rainfall

C. Only evaporation

D. Only cloud formation

Answer: A

Explanation: Domestic use is one component of water demand.

Conservation and Management

Question 19

What is the main aim of water conservation?

A. Increase wastage

B. Protect and use water efficiently

C. Stop all irrigation

D. Eliminate rainfall

Answer: B

Explanation: Conservation seeks to reduce wastage and protect supplies.

Question 20

Which measure can support groundwater recharge?

A. Recharge structures

B. Sealing all open areas

C. Increasing leakage

D. Over-pumping

Answer: A

Explanation: Recharge structures can help water infiltrate where conditions are suitable.

Question 21

Which is a decentralised water-management practice?

A. Rooftop rainwater harvesting

B. Only a national dam

C. International shipping

D. Mining

Answer: A

Explanation: Rooftop harvesting can be implemented locally.

Question 22

Why should local water bodies be protected?

A. They can support storage, recharge and local ecology

B. They have no role

C. They always increase pollution

D. They prevent all rainfall

Answer: A

Explanation: Ponds, lakes and other water bodies can contribute to local water security.

Question 23

Which measure can reduce pressure on freshwater supplies?

A. Wastewater reuse where appropriate

B. Continuous wastage

C. Untreated discharge

D. Excessive pumping

Answer: A

Explanation: Appropriate reuse can reduce demand for fresh water.

Question 24

Which statement best describes water management?

A. Only saving water

B. Planning, allocation, use, protection, recharge and conservation

C. Only building dams

D. Only groundwater pumping

Answer: B

Explanation: Water management is broader than conservation alone.

Question 25

Why is efficient irrigation important?

A. It can reduce water losses

B. It always increases wastage

C. It eliminates rainfall

D. It prevents crop growth

Answer: A

Explanation: Efficient irrigation improves the use of available water.

Question 26

Which practice is least consistent with sustainable water management?

A. Uncontrolled groundwater extraction

B. Rainwater harvesting

C. Water recycling

D. Protection of water bodies

Answer: A

Explanation: Uncontrolled extraction can exceed recharge.

Question 27

Why is community participation useful in water management?

A. Local users can help manage and protect shared resources

B. It always increases demand

C. It prevents all government action

D. It removes local knowledge

Answer: A

Explanation: Community participation can strengthen local stewardship.

Question 28

What should be considered before selecting a water-conservation method?

A. Local rainfall, terrain, soil and water needs

B. Only population colour

C. Only road length

D. Only building height

Answer: A

Explanation: Water systems should be adapted to local physical and social conditions.

Question 29

Which is an example of reducing water wastage?

A. Repairing leaks

B. Leaving taps open

C. Flooding fields unnecessarily

D. Ignoring damaged pipes

Answer: A

Explanation: Leak repair directly reduces avoidable water loss.

Question 30

Why should groundwater extraction be monitored?

A. To keep withdrawal closer to sustainable availability

B. To increase depletion

C. To stop all wells

D. To eliminate recharge

Answer: A

Explanation: Monitoring helps identify over-extraction.

Question 31

Which approach combines storage and recharge?

A. Rainwater harvesting

B. Uncontrolled runoff

C. Pollution

D. Over-pumping

Answer: A

Explanation: Harvesting can store rainwater and/or direct it to recharge.

Question 32

What is watershed management mainly concerned with?

A. Managing water and land within a drainage area

B. Only ocean transport

C. Only city roads

D. Only mining

Answer: A

Explanation: Watershed management integrates water and land management within a catchment.

Question 33

Which action can protect water quality?

A. Treating wastewater before discharge

B. Discharging untreated sewage

C. Dumping solid waste

D. Ignoring industrial effluents

Answer: A

Explanation: Treatment reduces pollution entering water bodies.

Question 34

Which is a benefit of local rainwater harvesting?

A. It can improve local water availability

B. It guarantees unlimited water

C. It stops the hydrological cycle

D. It eliminates all droughts

Answer: A

Explanation: Local harvesting can supplement supplies but does not guarantee unlimited water.

Question 35

Why should water use be planned for future generations?

A. Freshwater availability and quality can be under pressure

B. Future needs never matter

C. Water cannot be polluted

D. Demand always falls

Answer: A

Explanation: Sustainable use considers long-term availability.

Question 36

Which statement best links conservation and management?

A. Conservation is part of broader water management

B. They are completely unrelated

C. Management means only dams

D. Conservation means pollution

Answer: A

Explanation: Conservation is one important component of integrated management.

Multipurpose River Projects and Dams

Question 37

What is a multipurpose river project?

A. A project serving several water-related purposes

B. A project with one private well

C. A road project

D. A forest survey

Answer: A

Explanation: Multipurpose projects are designed to provide several benefits from regulated water.

Question 38

Which is a common purpose of a dam?

A. Irrigation

B. Increasing pollution

C. Stopping all rivers

D. Removing rainfall

Answer: A

Explanation: Dams can store and regulate water for irrigation.

Question 39

How can dams generate hydroelectricity?

A. Water flow turns turbines connected to generators

B. Rain falls on solar panels

C. Water is converted directly into coal

D. Wind turns the reservoir

Answer: A

Explanation: Flowing water can turn turbines and generate electricity.

Question 40

How can reservoirs assist flood moderation?

A. By storing and regulating part of incoming flow

B. By increasing every flood

C. By stopping rainfall

D. By removing rivers

Answer: A

Explanation: Reservoir storage and regulated releases can moderate some flood peaks.

Question 41

Which is another possible use of reservoirs?

A. Water supply

B. Only mining

C. Only road building

D. Only deforestation

Answer: A

Explanation: Reservoirs can supply water for domestic and industrial needs.

Question 42

Why are such projects called multipurpose?

A. They combine several uses

B. They use only one crop

C. They have no reservoir

D. They serve only tourism

Answer: A

Explanation: Their design can combine irrigation, power, water supply and other uses.

Question 43

Which project is associated with the Narmada River?

A. Sardar Sarovar

B. Tehri

C. Hirakud

D. Tungabhadra

Answer: A

Explanation: Sardar Sarovar is a major project on the Narmada.

Question 44

Tehri project is associated with which river?

A. Bhagirathi

B. Mahanadi

C. Narmada

D. Sutlej

Answer: A

Explanation: Tehri is associated with the Bhagirathi River.

Question 45

Hirakud is associated with which river?

A. Mahanadi

B. Narmada

C. Krishna

D. Chenab

Answer: A

Explanation: Hirakud is built across the Mahanadi.

Question 46

Bhakra Nangal is associated with which river?

A. Sutlej

B. Chambal

C. Bhagirathi

D. Tungabhadra

Answer: A

Explanation: Bhakra Nangal is associated with the Sutlej.

Question 47

Salal project is associated with which river?

A. Chenab

B. Mahanadi

C. Krishna

D. Narmada

Answer: A

Explanation: Salal is on the Chenab River.

Question 48

Rana Pratap Sagar is associated with which river?

A. Chambal

B. Sutlej

C. Narmada

D. Mahanadi

Answer: A

Explanation: Rana Pratap Sagar is associated with the Chambal.

Question 49

Tungabhadra project is associated with which river?

A. Tungabhadra

B. Chenab

C. Bhagirathi

D. Narmada

Answer: A

Explanation: The project is associated with the Tungabhadra River.

Question 50

Nagarjun Sagar is associated with which river?

A. Krishna

B. Sutlej

C. Chambal

D. Mahanadi

Answer: A

Explanation: Nagarjun Sagar is on the Krishna River.

Question 51

Which is a possible economic benefit of multipurpose projects?

A. Irrigation and electricity

B. Only displacement

C. Only pollution

D. Only erosion

Answer: A

Explanation: Irrigation and power can support economic activity.

Question 52

Which statement about flood control is most accurate?

A. Dams can moderate some flood flows but cannot eliminate all flood risk

B. Dams eliminate every flood

C. Dams create rainfall

D. Floods never occur downstream

Answer: A

Explanation: Flooding also depends on rainfall, reservoir conditions and downstream factors.

Question 53

Why can large reservoirs support fisheries?

A. They create substantial inland water bodies

B. They remove all fish

C. They eliminate water

D. They create oceans

Answer: A

Explanation: Reservoirs can provide suitable conditions for inland fisheries.

Question 54

Which is NOT normally a purpose of a multipurpose river project?

A. Increasing water pollution

B. Irrigation

C. Hydroelectricity

D. Water supply

Answer: A

Explanation: Increasing pollution is not a project purpose.

Concerns, Conflicts and Rainwater Harvesting

Question 55

Why can large dams cause displacement?

A. Reservoirs may submerge settlements and land

B. Dams create new villages automatically

C. They reduce all water

D. They stop roads

Answer: A

Explanation: Reservoir submergence can affect settlements and agricultural land.

Question 56

Which is a social concern related to large projects?

A. Loss of livelihoods and displacement

B. More rainfall

C. Groundwater recharge only

D. Reduced construction

Answer: A

Explanation: Displacement can affect homes, livelihoods and social networks.

Question 57

Which environmental change may result from river regulation?

A. Changes in river ecosystems

B. Creation of rainfall

C. Elimination of all sediment

D. No downstream effects ever

Answer: A

Explanation: River regulation can alter ecosystems and sediment movement.

Question 58

Why can conflicts arise around multipurpose projects?

A. Costs and benefits may be distributed unevenly

B. Everyone always receives identical benefits

C. Projects never affect people

D. Water has no economic value

Answer: A

Explanation: Unequal distribution of costs and benefits can create conflict.

Question 59

What is rehabilitation in the context of displacement?

A. Support to help affected people rebuild homes and livelihoods

B. Closing every dam

C. Removing all villages

D. Stopping irrigation

Answer: A

Explanation: Rehabilitation aims to restore living conditions and livelihoods.

Question 60

What is rainwater harvesting?

A. Collecting and managing rainwater for storage or recharge

B. Pumping seawater only

C. Releasing sewage

D. Building only large dams

Answer: A

Explanation: Rainwater harvesting captures rainfall for later use or recharge.

Question 61

In rooftop harvesting, the roof acts as the:

A. Catchment area

B. Reservoir wall

C. Water treatment plant

D. River bed

Answer: A

Explanation: The roof collects rainfall that is then conveyed through pipes.

Question 62

What may be used to divert the initial dirty roof runoff?

A. First-flush arrangement

B. Turbine

C. Dam gate

D. Canal lock

Answer: A

Explanation: A first-flush arrangement can divert initial runoff containing accumulated impurities.

Question 63

Where can harvested rainwater be directed?

A. Storage tank or suitable recharge structure

B. Only ocean

C. Only factory chimney

D. Only road

Answer: A

Explanation: It can be stored or directed for groundwater recharge where appropriate.

Question 64

Tankas are associated especially with traditional water management in:

A. Rajasthan

B. Kerala only

C. Assam only

D. Punjab only

Answer: A

Explanation: Tankas are traditional underground storage structures associated with Rajasthan's dry regions.

Question 65

Which is a traditional water-harvesting structure?

A. Johad

B. Thermal plant

C. Highway

D. Port

Answer: A

Explanation: Johads are traditional local water-harvesting structures.

Question 66

What is a khadin?

A. A traditional water-harvesting system

B. A hydroelectric turbine

C. A modern pipeline

D. A water-pollution law

Answer: A

Explanation: Khadins are traditional systems associated with rainwater and runoff management.

Question 67

Why are traditional systems important?

A. They reflect local adaptation to rainfall and terrain

B. They always require huge dams

C. They eliminate all droughts

D. They depend only on imported technology

Answer: A

Explanation: Traditional systems demonstrate locally adapted water management.

Question 68

Which is a benefit of rooftop harvesting?

A. Groundwater recharge where suitable

B. Guaranteed unlimited water

C. Elimination of all pollution

D. Stopping the monsoon

Answer: A

Explanation: Recharge systems can replenish groundwater depending on local conditions.

Question 69

What should be considered when designing a rooftop harvesting system?

A. Roof area, rainfall, soil and intended use

B. Only paint colour

C. Only road width

D. Only building age

Answer: A

Explanation: System design should match local physical conditions and water needs.

Question 70

Which is the best approach to a large dam proposal?

A. Evaluate benefits, costs, social impacts and environmental impacts together

B. Consider only electricity

C. Ignore affected people

D. Ignore downstream effects

Answer: A

Explanation: Balanced assessment is necessary for sustainable development.

Question 71

Which statement best describes a sustainable water policy?

A. It combines efficient use, conservation, recharge and fair management

B. It relies only on pumping

C. It ignores pollution

D. It uses water without limits

Answer: A

Explanation: Sustainable policy combines multiple complementary measures.

Question 72

Which local measure can reduce surface runoff while storing water?

A. Rainwater harvesting

B. Open discharge

C. Pavement expansion everywhere

D. Untreated sewage

Answer: A

Explanation: Harvesting captures runoff for storage or recharge.

Competency, Application and Map Practice

Question 73

A town has falling groundwater levels despite normal rainfall. Which explanation is most likely?

A. Extraction exceeds recharge

B. Rainfall has stopped

C. There is no demand

D. All water is frozen

Answer: A

Explanation: Groundwater falls when withdrawals exceed replenishment over time.

Question 74

A school wants to reduce dependence on municipal water. Which first step is most appropriate?

A. Assess roof area, rainfall and water demand for harvesting

B. Increase leakage

C. Pump groundwater continuously

D. Dump wastewater

Answer: A

Explanation: A site assessment helps design an appropriate harvesting system.

Question 75

A dam provides irrigation but displaces villages. What principle should guide evaluation?

A. Balance development benefits with social and environmental costs

B. Ignore displacement

C. Count only electricity

D. Ignore rehabilitation

Answer: A

Explanation: Balanced assessment considers all major consequences.

Question 76

A farmer uses efficient irrigation and harvests rainwater. What is the likely result?

A. More efficient use of available water

B. Guaranteed no drought

C. Increased wastage

D. Reduced recharge

Answer: A

Explanation: Efficiency and harvesting can reduce pressure on water supplies.

Question 77

A city expands rapidly and covers open land with buildings. Which water problem may increase?

A. Reduced groundwater recharge

B. More infiltration everywhere

C. Lower water demand

D. Automatic recharge

Answer: A

Explanation: Built-up surfaces can reduce infiltration.

Question 78

A polluted river has abundant water. Can it automatically be treated as an adequate freshwater supply?

A. No, quality may make it unsuitable for many uses

B. Yes, pollution increases usability

C. Yes, quantity always matters more

D. No river can ever be used

Answer: A

Explanation: Usability depends on water quality as well as quantity.

Question 79

A region has seasonal rainfall. Which strategy best improves year-round water security?

A. Storage, recharge and efficient use

B. Allow all runoff to escape

C. Increase leakage

D. Pump without limits

Answer: A

Explanation: Seasonal rainfall requires careful storage and recharge.

Question 80

Which question best tests analytical understanding of dams?

A. How do benefits compare with social and environmental costs?

B. What colour is the dam?

C. How many bricks are painted?

D. What is the road sign colour?

Answer: A

Explanation: Analytical questions require evaluation of consequences.

Question 81

Which map pair is correct?

A. Hirakud—Mahanadi

B. Tehri—Narmada

C. Salal—Krishna

D. Sardar Sarovar—Sutlej

Answer: A

Explanation: Hirakud is associated with the Mahanadi.

Question 82

Which map pair is correct?

A. Sardar Sarovar—Narmada

B. Bhakra Nangal—Krishna

C. Nagarjun Sagar—Chenab

D. Rana Pratap Sagar—Mahanadi

Answer: A

Explanation: Sardar Sarovar is on the Narmada.

Question 83

Which map pair is correct?

A. Tehri—Bhagirathi

B. Salal—Mahanadi

C. Tungabhadra—Narmada

D. Hirakud—Chambal

Answer: A

Explanation: Tehri is associated with the Bhagirathi.

Question 84

Which pair is correctly matched?

A. Rana Pratap Sagar—Chambal

B. Tungabhadra—Sutlej

C. Nagarjun Sagar—Chenab

D. Salal—Krishna

Answer: A

Explanation: Rana Pratap Sagar is associated with the Chambal.

Question 85

Assertion (A): Water scarcity can occur even in a high-rainfall region. Reason (R): Water availability also depends on demand, storage, quality and distribution.

A. Both A and R are true, and R correctly explains A

B. Both A and R are true, but R does not explain A

C. A is true but R is false

D. A is false but R is true

Answer: A

Explanation: Rainfall alone does not determine usable water availability.

Question 86

Assertion (A): Rainwater harvesting can support groundwater recharge. Reason (R): Harvested water can be directed into suitable recharge structures.

A. Both A and R are true, and R correctly explains A

B. Both A and R are true, but R does not explain A

C. A is true but R is false

D. A is false but R is true

Answer: A

Explanation: Recharge structures can direct collected water into the ground where conditions permit.

Question 87

Assertion (A): Multipurpose projects can have both benefits and costs. Reason (R): Large projects may provide irrigation and power but can also cause displacement and ecological change.

A. Both A and R are true, and R correctly explains A

B. Both A and R are true, but R does not explain A

C. A is true but R is false

D. A is false but R is true

Answer: A

Explanation: The same project can generate development benefits and social/environmental impacts.

Question 88

A village protects its pond, harvests rooftop rainwater and limits groundwater pumping. Which concept best describes this approach?

A. Integrated local water management

B. Uncontrolled extraction

C. Single-purpose development

D. Water pollution

Answer: A

Explanation: Multiple complementary measures are being used together.

Question 89

Which action would most directly reduce water pollution from a town?

A. Treat sewage before discharge

B. Increase groundwater pumping

C. Build more roads

D. Remove storage tanks

Answer: A

Explanation: Sewage treatment reduces pollutants entering water bodies.

Question 90

Which statement is best for a competency-based conclusion about water security?

A. No single solution is sufficient; conservation, efficient use, recharge and appropriate infrastructure can work together

B. Only dams matter

C. Only rainfall matters

D. Groundwater can be pumped indefinitely

Answer: A

Explanation: Water security requires a combination of measures adapted to local conditions.

Quick Revision: High-Value MCQ Areas

• Water scarcity and its physical and human causes
• Population growth, irrigation, industrialisation and urbanisation
• Groundwater depletion and recharge
• Water conservation and integrated management
• Multipurpose river projects and major purposes of dams
• Benefits and social/environmental concerns of large projects
• Rainwater harvesting and rooftop systems
• Traditional systems such as tankas, khadins and johads
• Major dams/projects for CBSE map practice
• Assertion-reasoning and competency-based application

Frequently Asked Questions

How many Water Resources MCQs are included?

This page contains 90 original MCQs with answers and short explanations.

Are these MCQs suitable for CBSE Class 10?

Yes. They are organised around the core Water Resources themes and include factual, conceptual, analytical and application-oriented practice.

Should I memorise the answers?

No. First identify the concept being tested, then use the explanation to understand why the correct option is right.

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CBSE alignment: Water Resources focuses on water scarcity and the need for conservation and management, multipurpose river projects and rainwater harvesting. CBSE learning standards also emphasise locating and labelling dams/projects, explaining overuse impacts, evaluating ways to address scarcity and expressing views on multipurpose projects. View CBSE learning standards.