🌱 Management of Natural Resources – MCQs (Class 10 Science, NCERT)

🔹 Part 2: Questions 26–50

Q26. Which of these is NOT a renewable resource?

A) Solar energy
B) Wind energy
C) Coal
D) Water

Correct Answer: C) Coal

Explanation:

• ✅ C) Coal → Fossil fuel, exhaustible, non-renewable.
• A, B, D → Inexhaustible renewable resources.

Q27. Which of the following practices can conserve water resources?

A) Over-irrigation
B) Rainwater harvesting
C) Deforestation
D) Industrial waste dumping

Correct Answer: B) Rainwater harvesting

Explanation:

• ✅ B) Collecting rainwater increases groundwater levels.

Q28. Which of these is an example of sustainable resource use?

A) Using coal for electricity
B) Afforestation
C) Overfishing
D) Overgrazing

Correct Answer: B) Afforestation

Explanation:

• ✅ B) Planting more trees ensures long-term forest resources.

Q29. Which energy source is most eco-friendly?

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

Correct Answer: C) Solar energy

Explanation:

• ✅ C) Solar energy → Renewable, clean, no pollution.

Q30. Which of the following is a disadvantage of fossil fuels?

A) Cheap energy
B) High calorific value
C) Causes air pollution
D) Abundant availability

Correct Answer: C) Causes air pollution

Explanation:

• ✅ C) Burning fossil fuels → CO₂, SO₂, global warming.

Q31. Which of the following is NOT an example of sustainable development?

A) Using solar heaters
B) Reusing plastic bottles
C) Overusing groundwater
D) Rainwater harvesting

Correct Answer: C) Overusing groundwater

Explanation:

• ✅ C) Overexploitation of groundwater is unsustainable.

Q32. Which of these is a direct advantage of water harvesting?

A) Increases deforestation
B) Raises water table
C) Increases air pollution
D) Increases soil salinity

Correct Answer: B) Raises water table

Explanation:

• ✅ B) Harvesting rainwater replenishes groundwater.

Q33. Which energy source is obtained from running water?

A) Wind energy
B) Solar energy
C) Hydropower
D) Biomass

Correct Answer: C) Hydropower

Explanation:

• ✅ C) Kinetic energy of water turns turbines → electricity.

Q34. Which program is related to conservation of forests in India?

A) Namami Gange
B) Chipko Movement
C) Project Tiger
D) Silent Valley Project

Correct Answer: B) Chipko Movement

Explanation:

• ✅ B) Villagers hugged trees to prevent logging.

Q35. Which gas is released in large amounts by burning fossil fuels?

A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Helium

Correct Answer: C) Carbon dioxide

Explanation:

• ✅ C) CO₂ is a greenhouse gas → global warming.

Q36. Which practice ensures soil conservation?

A) Overgrazing
B) Terrace farming
C) Deforestation
D) Monoculture

Correct Answer: B) Terrace farming

Explanation:

• ✅ B) Prevents soil erosion on slopes.

Q37. Which of these is NOT a function of forests?

A) Maintaining oxygen level
B) Preventing soil erosion
C) Recycling nutrients
D) Increasing desertification

Correct Answer: D) Increasing desertification

Explanation:

• ✅ D) Forests prevent desertification; deforestation increases it.

Q38. Which of these is the main drawback of large dams?

A) Electricity generation
B) Irrigation facilities
C) Displacement of people
D) Flood control

Correct Answer: C) Displacement of people

Explanation:

• ✅ C) Submergence of land → displacement of locals.

Q39. Which of the following reduces deforestation?

A) Building more roads
B) Paper recycling
C) Overgrazing
D) Increasing urbanization

Correct Answer: B) Paper recycling

Explanation:

• ✅ B) Recycling reduces need for cutting trees.

Q40. Which of the following is NOT a non-conventional energy source?

A) Solar energy
B) Wind energy
C) Biomass
D) Petroleum

Correct Answer: D) Petroleum

Explanation:

• ✅ D) Petroleum → conventional, non-renewable.

Q41. Which of these methods can reduce energy consumption?

A) Use of LED bulbs
B) Leaving fans ON
C) Overusing air conditioners
D) Wasting electricity

Correct Answer: A) Use of LED bulbs

Explanation:

• ✅ A) LEDs are energy-efficient.

Q42. Which of the following is an advantage of water harvesting?

A) Increases flooding
B) Recharges groundwater
C) Decreases water table
D) Pollutes rivers

Correct Answer: B) Recharges groundwater

Explanation:

• ✅ B) Rainwater harvesting increases water availability.

Q43. Which of these is a conventional source of energy?

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

Correct Answer: C) Coal

Explanation:

• ✅ C) Coal → Conventional fossil fuel.

Q44. The major disadvantage of nuclear energy is:

A) High energy per unit
B) Air pollution
C) Radioactive waste disposal
D) Renewable source

Correct Answer: C) Radioactive waste disposal

Explanation:

• ✅ C) Waste is hazardous for thousands of years.

Q45. Which of the following is an eco-friendly practice?

A) Throwing plastic bags
B) Composting kitchen waste
C) Burning fossil fuels
D) Excessive mining

Correct Answer: B) Composting kitchen waste

Explanation:

• ✅ B) Produces manure, reduces landfill waste.

Q46. Which is the main aim of watershed management?

A) Soil and water conservation
B) Building cities
C) Deforestation
D) Mining

Correct Answer: A) Soil and water conservation

Explanation:

• ✅ A) Watershed management increases productivity & water storage.

Q47. Which of the following is NOT a disadvantage of using fossil fuels?

A) Air pollution
B) Renewable source
C) Global warming
D) Acid rain

Correct Answer: B) Renewable source

Explanation:

• ✅ B) Fossil fuels are non-renewable, not renewable.

Q48. Which of the following is a disadvantage of hydropower plants?

A) Renewable energy
B) Flood control
C) Displacement of people
D) Irrigation facility

Correct Answer: C) Displacement of people

Explanation:

• ✅ C) Large dams → submerge villages, displace locals.

Q49. Which of these is an example of ex-situ conservation?

A) Wildlife sanctuary
B) National park
C) Zoological park
D) Biosphere reserve

Correct Answer: C) Zoological park

Explanation:

• ✅ C) Ex-situ = conserving species outside their habitat.

Q50. Which of the following is NOT a greenhouse gas?

A) Carbon dioxide
B) Methane
C) Oxygen
D) Nitrous oxide

Correct Answer: C) Oxygen

Explanation:

• ✅ C) O₂ is not a greenhouse gas; it doesn’t trap heat.

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