Natural Resources and Their Conservation
An MCQ Study for Class 6 Students on Natural Resources
Instructions
- Read each question carefully.
- Choose the correct option (A, B, C or D).
- Check answer key after solving.
1. Which of the following is considered a renewable resource?
- A) Coal
- B) Petroleum
- C) Sunlight
- D) Natural Gas
2. Why is it important to conserve natural resources?
- A) To increase pollution
- B) To ensure availability for future generations
- C) To make them disappear faster
- D) To reduce the cost of resources for current use
3. Which gas makes up the largest percentage of air in our atmosphere?
- A) Oxygen
- B) Carbon Dioxide
- C) Nitrogen
- D) Argon
4. What is the primary role of carbon dioxide in the atmosphere for plants?
- A) To help them breathe
- B) To help them produce food through photosynthesis
- C) To help them grow tall
- D) To protect them from harmful UV rays
5. Which human activity is a major cause of air pollution?
- A) Planting trees
- B) Using public transport
- C) Burning fossil fuels in vehicles and factories
- D) Composting organic waste
6. What are the main stages of the water cycle?
- A) Melting, Freezing, Boiling, Condensation
- B) Evaporation, Condensation, Precipitation, Collection
- C) Drinking, Washing, Bathing, Cleaning
- D) Flowing, Standing, Still, Running
7. What percentage of the Earth's water is freshwater, which is suitable for drinking?
- A) About 97%
- B) About 70%
- C) About 3%
- D) About 50%
8. Which method helps conserve water by collecting and storing rainwater?
- A) Dumping waste into rivers
- B) Rainwater harvesting
- C) Excessive use of sprinklers
- D) Leaving taps open
9. Which layer of soil is generally the most fertile and rich in organic matter?
- A) Bedrock
- B) Subsoil
- C) Topsoil
- D) Parent rock
10. What is soil erosion?
- A) The formation of new soil
- B) The movement of soil from one place to another by natural forces
- C) The process of adding nutrients to the soil
- D) The growth of plants in the soil
11. How do forests help in conserving soil?
- A) By increasing soil erosion
- B) By making the soil infertile
- C) By holding the soil with their roots and slowing down water flow
- D) By burning leaves and branches on the soil
12. What is "biodiversity"?
- A) The total amount of water on Earth
- B) The variety of plant and animal life in a particular habitat or on Earth
- C) The amount of pollution in the atmosphere
- D) The types of rocks found in a region
13. What is the practice of planting new trees in deforested areas called?
- A) Deforestation
- B) Afforestation
- C) Pollution
- D) Erosion
14. National parks and wildlife sanctuaries are established primarily for what purpose?
- A) To build new cities
- B) To protect and conserve wildlife and natural habitats
- C) To extract minerals and fossil fuels
- D) To promote deforestation
15. Which of the following is a non-metallic mineral?
- A) Iron ore
- B) Gold
- C) Limestone
- D) Copper
16. How are fossil fuels like coal, petroleum, and natural gas formed?
- A) From rapid cooling of volcanic lava
- B) From the remains of ancient plants and animals buried under layers of earth for millions of years
- C) From the direct conversion of sunlight into fuel
- D) From the accumulation of freshwater in lakes
17. Which of these is an example of an alternative energy source to fossil fuels?
- A) Coal
- B) Natural Gas
- C) Solar energy
- D) Petrol
18. What is the difference between biodegradable and non-biodegradable waste?
- A) Biodegradable waste is expensive, non-biodegradable is cheap.
- B) Biodegradable waste can be broken down naturally by microorganisms, while non-biodegradable waste cannot.
- C) Biodegradable waste is always solid, non-biodegradable is always liquid.
- D) Biodegradable waste is recyclable, non-biodegradable waste is not.
19. Which of the "3 Rs" of waste management helps to reduce the amount of new materials we consume?
- A) Recycle
- B) Reuse
- C) Reduce
- D) Repair
20. What is the process of converting organic waste into nutrient-rich soil called?
- A) Incineration
- B) Landfilling
- C) Composting
- D) Recycling
21. Which of these resources is crucial for all forms of life and covers about 71% of the Earth's surface?
- A) Air
- B) Land
- C) Water
- D) Forests
22. What is the major source of oxygen in the atmosphere?
- A) Respiration by animals
- B) Photosynthesis by plants
- C) Volcanic eruptions
- D) Burning of fossil fuels
23. Which of the following describes "sustainable development"?
- A) Using up all resources as quickly as possible
- B) Meeting the needs of the present without compromising the ability of future generations to meet their own needs
- C) Ignoring environmental concerns for economic growth
- D) Developing only urban areas and neglecting rural regions
24. Which part of the water cycle involves water turning into vapour and rising into the air?
- A) Condensation
- B) Precipitation
- C) Evaporation
- D) Collection
25. Why is topsoil considered very important for agriculture?
- A) It is made of solid rock and supports buildings.
- B) It contains minerals like gold and silver.
- C) It is rich in humus and nutrients essential for plant growth.
- D) It prevents water from soaking into the ground.
26. Deforestation mainly leads to:
- A) Increase in rainfall
- B) Increase in biodiversity
- C) Soil erosion and loss of wildlife habitats
- D) Reduction in global warming
27. Which waste management strategy involves turning used items into new products?
- A) Reduce
- B) Reuse
- C) Recycle
- D) Refuse
28. Why are fossil fuels considered non-renewable resources?
- A) They are constantly being formed at a fast rate.
- B) They are found in very large quantities and will never run out.
- C) They take millions of years to form and exist in limited quantities.
- D) They can be easily replaced by sunlight and wind.
29. What is the most significant consequence of water scarcity?
- A) Increased water prices for everyone
- B) Lack of sufficient clean water for drinking, agriculture, and sanitation
- C) More leisure time due to less farming
- D) Improved quality of life for all citizens
30. Which gas is vital for animals and humans to breathe?
- A) Carbon Dioxide
- B) Nitrogen
- C) Oxygen
- D) Argon
31. What is a common method to prevent soil erosion in hilly areas?
- A) Clear-cutting forests
- B) Overgrazing by livestock
- C) Terrace farming or contour ploughing
- D) Building concrete roads on slopes
32. What does "Biomass" refer to as a renewable resource?
- A) Energy from burning plastic waste
- B) Energy from the sun
- C) Energy from plant and animal waste
- D) Energy from deep within the Earth
33. What is the primary benefit of waste segregation at source (separating waste at home)?
- A) It makes the garbage heavier.
- B) It mixes all types of waste together for easier disposal.
- C) It allows for efficient recycling and composting, reducing landfill waste.
- D) It creates more landfills.
34. Which natural resource is primarily used for generating electricity in thermal power plants?
- A) Wind
- B) Solar energy
- C) Coal
- D) Water (hydroelectric)