🌍 Natural Resources – Class 9 Science MCQs

Section 4: Renewable Resources, Sustainable Management & HOTS (Q76–Q100)

Q76. Which of the following is a renewable resource?

A. Coal
B. Petroleum
C. Solar energy
D. Natural gas

✅ Correct Answer: C. Solar energy

Explanation:

• A, B, D: Non-renewable fossil fuels.
• C: Sunlight is inexhaustible → renewable.

Q77. Which of these is NOT a renewable resource?

A. Wind energy
B. Biomass
C. Coal
D. Solar energy

✅ Correct Answer: C. Coal

Q78. Which of these is a non-conventional source of energy?

A. Coal
B. Petroleum
C. Wind energy
D. Natural gas

✅ Correct Answer: C. Wind energy

Q79. Which is a clean source of energy?

A. Coal
B. Petroleum
C. Solar power
D. Firewood

✅ Correct Answer: C. Solar power

Q80. Which energy resource is called “fuel of future”?

A. Hydrogen
B. Coal
C. Petroleum
D. Wood

✅ Correct Answer: A. Hydrogen

Q81. Biogas is produced from:

A. Petroleum
B. Coal
C. Animal dung and organic waste
D. Sunlight

✅ Correct Answer: C. Animal dung and organic waste

Q82. The main component of biogas is:

A. CO₂
B. CH₄ (Methane)
C. H₂
D. O₂

✅ Correct Answer: B. CH₄ (Methane)

Q83. Which method of irrigation conserves water most?

A. Flood irrigation
B. Sprinkler irrigation
C. Drip irrigation
D. Canal irrigation

✅ Correct Answer: C. Drip irrigation

Q84. Which practice helps conserve soil?

A. Overgrazing
B. Terrace farming
C. Deforestation
D. Over-irrigation

✅ Correct Answer: B. Terrace farming

Q85. Which human activity causes desertification?

A. Deforestation
B. Over-irrigation
C. Overgrazing
D. All of these

✅ Correct Answer: D. All of these

Q86. Which activity increases groundwater level?

A. Deforestation
B. Rainwater harvesting
C. Over-irrigation
D. Over-pumping wells

✅ Correct Answer: B. Rainwater harvesting

Q87. The “chipko movement” is related to:

A. Soil conservation
B. Forest conservation
C. Water conservation
D. Wildlife protection

✅ Correct Answer: B. Forest conservation

Q88. The “Narmada Bachao Andolan” was against:

A. Deforestation
B. Big dam construction
C. Soil erosion
D. Urbanisation

✅ Correct Answer: B. Big dam construction

Q89. Which is NOT a consequence of deforestation?

A. Soil erosion
B. Decreased rainfall
C. Biodiversity loss
D. Increased soil fertility

✅ Correct Answer: D. Increased soil fertility

Q90. Which method conserves biodiversity?

A. Wildlife sanctuaries
B. National parks
C. Biosphere reserves
D. All of these

✅ Correct Answer: D. All of these

Q91. Which of the following is a sustainable practice?

A. Overexploitation of forests
B. Using solar cookers
C. Burning fossil fuels
D. Excessive groundwater use

✅ Correct Answer: B. Using solar cookers

Q92. Which is the most environment-friendly energy source?

A. Solar energy
B. Coal
C. Petroleum
D. Nuclear energy

✅ Correct Answer: A. Solar energy

Q93. Which method reduces pressure on fossil fuels?

A. Using renewable energy
B. Overusing petrol
C. Increasing coal mining
D. Burning wood

✅ Correct Answer: A. Using renewable energy

Q94. Which is the main reason for “water crisis”?

A. Mismanagement & overuse of water
B. Only natural shortage
C. Lack of rainfall
D. None

✅ Correct Answer: A. Mismanagement & overuse of water

Q95. Which is the correct definition of sustainable development?

A. Using all resources quickly
B. Using resources without harming future generations
C. Exploiting natural resources
D. Conserving only forests

✅ Correct Answer: B. Using resources without harming future generations

Q96. Which energy resource is harnessed from flowing water?

A. Solar energy
B. Hydro power
C. Biogas
D. Geothermal

✅ Correct Answer: B. Hydro power

Q97. Which is the main disadvantage of nuclear power?

A. Low energy output
B. Air pollution
C. Radioactive waste disposal
D. High fuel cost

✅ Correct Answer: C. Radioactive waste disposal

Q98. Which is the best way to manage solid waste?

A. Burning
B. Open dumping
C. Segregation, recycling & composting
D. Throwing in rivers

✅ Correct Answer: C. Segregation, recycling & composting

Q99. Which of the following is NOT an inexhaustible natural resource?

A. Solar energy
B. Wind energy
C. Tidal energy
D. Coal

✅ Correct Answer: D. Coal

Q100. Which one is the most eco-friendly practice?

A. Cutting forests for fuel
B. Recycling paper and plastics
C. Using diesel vehicles
D. Burning coal for electricity

✅ Correct Answer: B. Recycling paper and plastics

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