This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 15 Our Environment – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 15 Our Environment Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is one way we can reduce human impact on the environment? A) Increase the use of CFCs. B) Increase pollution prevention. C) Decrease the use of conservation. D) Decrease Endangered Species Protections. Show Answer Correct Answer: B) Increase pollution prevention. 2. The term environment means the ..... A) Surroundings. B) Lithosphere. C) Hydrosphere. D) Atmosphere. Show Answer Correct Answer: A) Surroundings. 3. ..... is a non-biodegradable substance. A) Human/ animal waste Newspaper Aluminium Plant products. B) Newspaper. C) Aluminium. D) Plant products. Show Answer Correct Answer: C) Aluminium. 4. Catching large numbers of fish at a very fast rate. A) Overfishing. B) Sustainable Fishing. C) Aquaculture. D) Bycatch. Show Answer Correct Answer: A) Overfishing. 5. Which of the following is the best way for disposal of vegetable and fruit peels? A) Landfill. B) Recycling. C) Composting. D) Burning. Show Answer Correct Answer: C) Composting. 6. Each step of the food chain is called A) Primary level. B) Consumer level. C) Trophic level. D) Tertiary level. Show Answer Correct Answer: C) Trophic level. 7. What are autotrophic organisms? A) Organisms are those that need to ingest organic material to nourish themselves. B) Organisms are those that can produce their own food, or rather, that produce organic material from inorganic compounds. C) A set of all of the ecosystems on the planet. D) I don't know. Show Answer Correct Answer: B) Organisms are those that can produce their own food, or rather, that produce organic material from inorganic compounds. 8. Green plants utilize how much percent of sun's energy to prepare their food by the process of photosynthesis? A) 3%. B) 100%. C) 10%. D) 1%. Show Answer Correct Answer: D) 1%. 9. When is Earth day? A) March 6. B) August 11. C) April 22. D) January 10. Show Answer Correct Answer: C) April 22. 10. Which one of the following is not a natural ecosystem? A) River. B) Cropland. C) Ocean. D) Forest. Show Answer Correct Answer: B) Cropland. 11. Food chains are interconnecting food webs. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 12. Which of the statements is incorrect? A) All green plants and blue green algae are producers. B) Green plants get their food from organic compounds. C) Producers prepare their own food from inorganic compounds. D) Plants convert solar energy into chemical energy. Show Answer Correct Answer: B) Green plants get their food from organic compounds. 13. Pick the odd one out A) Pepsi Can. B) Bottle. C) Vegetable peels. D) Thermacole plate. Show Answer Correct Answer: C) Vegetable peels. 14. Food web does not provide alternative pathway of food availability A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 15. A collection of organisms that belong to different populations but all live in the same area and interact with one another. A) Population. B) Ecosystem. C) Community. D) Ecosphere. Show Answer Correct Answer: C) Community. 16. (b) What phenomenon is responsible for the accumulation of non biodegradable material in the food chain? A) Biomagnification. B) Bio-significance. C) Biotechnology. D) Biochemistry. Show Answer Correct Answer: A) Biomagnification. 17. Living component of an ecosystem is called A) Biotic factor. B) Abiotic factor. C) Producers. D) Consumers. Show Answer Correct Answer: A) Biotic factor. 18. What is the definition of Abiotic factors? A) Alive organisms or things. B) Dead things or organisms. C) Panda. D) Insect. Show Answer Correct Answer: B) Dead things or organisms. 19. Narrow zone where land water and air interact is called A) Environment. B) Hydrosphere. C) Biosphere. D) Lithosphere. Show Answer Correct Answer: C) Biosphere. 20. ASSERTION:Biomagnification is caused due to accumulation of biodegradable toxicants in organisms at each successive trophic level.REASON:Biomagnification leads to the maximum accumulation of chemicals in small fishes. A) Both A & R are true. R is the correct explanation of A. B) Both A & R are true. R is the incorrect explanation of A. C) A is true but R is false. D) A is false but R is true. E) Both A & R are false. Show Answer Correct Answer: E) Both A & R are false. 21. Use of chemicals like CFC's are a danger to ..... layer of the Earth. A) Stratosphere. B) Mesosphere. C) Troposphere. D) Ozone. Show Answer Correct Answer: D) Ozone. 22. ..... is not an abiotic factor A) Humidity. B) Animals. C) Temperature. D) Altitude. Show Answer Correct Answer: B) Animals. 23. Temperature, light, water, soil, and air are all ..... parts of the environment A) Biotic factors. B) Abiotic factors. C) Consumers. D) Producers. Show Answer Correct Answer: B) Abiotic factors. 24. Which one of the following chemicals is not related to biological magnification? A) Chlorinated hydrocarbon. B) Heavy metals. C) Organophosphates. D) Polychlorinated biphenyls. Show Answer Correct Answer: C) Organophosphates. 25. What happens when the environment is polluted? A) You will become sick. B) It will look dirty. C) Not safe at all. D) All of these. Show Answer Correct Answer: D) All of these. ← PreviousNext →Related QuizzesClass 10 Science Chapter 15 Our Environment Quiz 1Class 10 Science Chapter 15 Our Environment Quiz 2Class 10 Science Chapter 15 Our Environment Quiz 3Class 10 Science Chapter 15 Our Environment Quiz 4Class 10 Science Chapter 15 Our Environment Quiz 5Class 10 Science Chapter 15 Our Environment Quiz 6Class 10 Science Chapter 15 Our Environment Quiz 8Class 10 Science Chapter 15 Our Environment Quiz 9Class 10 Science Chapter 15 Our Environment Quiz 10Class 10 Science Chapter 15 Our Environment Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books