MCQ | NCERT Class 9 Science | Chapter 11: Nature’s Treasures
Q1. What are natural resources?
(a) Resources obtained from nature
(b) Objects made only in factories
(c) Artificial materials only
(d) Machines used by humans
Answer: (a) Resources obtained from nature
Q2. Which of the following is a natural resource?
(a) Water
(b) Plastic bottle
(c) Computer
(d) Chair
Answer: (a) Water
Q3. Which of the following is an important natural resource needed by all living organisms?
(a) Water
(b) Plastic
(c) Glass
(d) Steel
Answer: (a) Water
Q4. Why is air important for living organisms?
(a) Many living organisms need gases in air for their life processes
(b) Air provides food to all animals
(c) Air is used only for transportation
(d) Air is needed only by plants
Answer: (a) Many living organisms need gases in air for their life processes
Q5. Which gas is needed by humans and many animals for respiration?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Water vapour
Answer: (a) Oxygen
Q6. Which gas is used by green plants during photosynthesis?
(a) Carbon dioxide
(b) Oxygen
(c) Nitrogen
(d) Hydrogen
Answer: (a) Carbon dioxide
Q7. Which natural resource covers a large part of Earth’s surface?
(a) Water
(b) Coal
(c) Soil
(d) Forests
Answer: (a) Water
Q8. Which of the following is a source of fresh water?
(a) River
(b) Ocean
(c) Sea
(d) Saltwater lake
Answer: (a) River
Q9. Why is fresh water important?
(a) It is needed for drinking and many other activities
(b) It is found only in oceans
(c) It cannot be used by living organisms
(d) It contains only salt
Answer: (a) It is needed for drinking and many other activities
Q10. What is soil?
(a) The upper layer of Earth in which many plants grow
(b) A type of water
(c) A form of air
(d) A type of artificial material
Answer: (a) The upper layer of Earth in which many plants grow
Q11. Why is soil important for plants?
(a) It provides support, water and nutrients
(b) It provides only sunlight
(c) It prevents plants from growing
(d) It provides only oxygen
Answer: (a) It provides support, water and nutrients
Q12. Which of the following is an important component of soil?
(a) Humus
(b) Plastic
(c) Glass
(d) Metal
Answer: (a) Humus
Q13. What is humus?
(a) Decayed plant and animal matter present in soil
(b) A type of rock
(c) A type of plastic
(d) Pure water found underground
Answer: (a) Decayed plant and animal matter present in soil
Q14. Which organisms help in breaking down dead plants and animals?
(a) Decomposers
(b) Producers only
(c) Rocks
(d) Clouds
Answer: (a) Decomposers
Q15. Which of the following is an example of a renewable natural resource?
(a) Sunlight
(b) Coal
(c) Petroleum
(d) Natural gas
Answer: (a) Sunlight
Q16. Which of the following is a non-renewable natural resource?
(a) Coal
(b) Sunlight
(c) Wind
(d) Rainwater
Answer: (a) Coal
Q17. Why are coal and petroleum called non-renewable resources?
(a) They take a very long time to form and cannot be quickly replaced
(b) They are produced every day
(c) They are available everywhere
(d) They are made by plants every year
Answer: (a) They take a very long time to form and cannot be quickly replaced
Q18. Which of the following is a renewable source of energy?
(a) Wind
(b) Coal
(c) Petroleum
(d) Natural gas
Answer: (a) Wind
Q19. What is conservation of natural resources?
(a) Careful use and protection of natural resources
(b) Using resources without limits
(c) Wasting water and energy
(d) Destroying forests
Answer: (a) Careful use and protection of natural resources
Q20. Which practice helps conserve water?
(a) Closing the tap when water is not needed
(b) Keeping taps running
(c) Wasting water while washing
(d) Polluting rivers
Answer: (a) Closing the tap when water is not needed
Q21. Why should forests be protected?
(a) Forests provide habitats, resources and help maintain ecological balance
(b) Forests have no importance
(c) Forests prevent all rainfall
(d) Forests are useful only for making furniture
Answer: (a) Forests provide habitats, resources and help maintain ecological balance
Q22. Which of the following can help protect forests?
(a) Planting trees and avoiding unnecessary cutting
(b) Cutting trees continuously
(c) Burning forests
(d) Destroying plant habitats
Answer: (a) Planting trees and avoiding unnecessary cutting
Q23. What can happen when natural resources are used carelessly?
(a) They may become depleted or damaged
(b) They increase automatically
(c) They become unlimited
(d) They never change
Answer: (a) They may become depleted or damaged
Q24. Which of the following is an example of responsible use of natural resources?
(a) Using resources carefully and reducing wastage
(b) Leaving lights on unnecessarily
(c) Wasting drinking water
(d) Throwing waste into rivers
Answer: (a) Using resources carefully and reducing wastage
Q25. What is the main message of the chapter “Nature’s Treasures”?
(a) Natural resources are valuable and should be used wisely and conserved
(b) Natural resources are unlimited
(c) Natural resources do not support life
(d) Humans do not depend on nature
Answer: (a) Natural resources are valuable and should be used wisely and conserved
