This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 15 Our Environment – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 15 Our Environment Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why is there a limited amount of energy that can be passed on to the next feeding level? A) There is never enough sunlight available. B) Some ecosystems have limited resources. C) Organisms use some of the energy they get from eating. D) All the energy is available to be passed on. Show Answer Correct Answer: C) Organisms use some of the energy they get from eating. 2. Which substance is responsible for the depletion of the ozone layer: A) CH$_{4}$. B) DDT. C) CFC's. D) Ammonia. Show Answer Correct Answer: C) CFC's. 3. Main causes of soil pollution are: A) Deforestation. B) Industrial pollution. C) Excessive use of fertilizers and pesticides. D) All of the above. Show Answer Correct Answer: D) All of the above. 4. Which of the following is an not example of abiotic factors? A) Lights. B) Plants. C) Heat. D) Temperature. Show Answer Correct Answer: B) Plants. 5. Which of the following is biodegradable waste? A) Polythene. B) Aluminum can. C) Plastic can. D) Cow dung. Show Answer Correct Answer: D) Cow dung. 6. Land, water, air, etc, comprise the ..... environment. A) Natural. B) Human. C) Man-made. D) Artificial. Show Answer Correct Answer: A) Natural. 7. The problem caused due to ozone hole is A) Earthquakes. B) Damage due to UV radiations. C) Chemical pollution. D) Acid rain. Show Answer Correct Answer: B) Damage due to UV radiations. 8. The direction of the flow of energy in a food web is represented by ..... A) Light bulbs. B) Dotted Lines. C) Arrows. D) Bubbles. Show Answer Correct Answer: C) Arrows. 9. ..... are found as an alternative for plastics which are decomposed by microbial action. A) PVC. B) Biodegradable plastics. C) Thermoplastic plastic. D) Thermosetting plastic. Show Answer Correct Answer: B) Biodegradable plastics. 10. Maximum amount of energy lies in A) T$_{1}$. B) T$_{2}$. C) T$_{3}$. D) T$_{4}$. Show Answer Correct Answer: A) T$_{1}$. 11. The constituents which do not form eco-system are ..... A) Biotic constituents. B) Abiotic constituents. C) Plastic bag. D) All of these. Show Answer Correct Answer: C) Plastic bag. 12. In ecosystem the flow of energy is A) Unidirectional. B) Bidirectional. C) Multi directional. D) All o these. Show Answer Correct Answer: A) Unidirectional. 13. What is a example of a abiotic factor? A) Panda. B) Turtle. C) Butterfly. D) Weather. Show Answer Correct Answer: D) Weather. 14. Any object that can be used to give us energy is called a ..... of energy. A) Source. B) Type. C) Form. D) Kind. Show Answer Correct Answer: A) Source. 15. A decrease in the grass population will most immediately affect decrease the available energy for the A) Mouse. B) Snake. C) Hawk. D) Frog. Show Answer Correct Answer: A) Mouse. 16. Every food chain in the ecosystem begins with ..... which are the original source of food. A) Saprophytes. B) Producers. C) Parastes. D) Consumers. Show Answer Correct Answer: B) Producers. 17. What is population? A) A group of mixed species of organisms. B) A group of different species in one habitat. C) A group with majority of one species and minority of another species. D) A group of same species in one habitat. Show Answer Correct Answer: B) A group of different species in one habitat. 18. What damage can UV rays cause? A) Can cause sunburn. B) Can cause some types of skin cancer. C) Cataracts. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. This forms when rainwater passes through pollution in the air. A) Acid Rain. B) Smog. C) Ozone. D) Fog. Show Answer Correct Answer: A) Acid Rain. 20. When is the World Environment Day celebrated? A) 16 June. B) 11 December. C) 5 June. D) 11 August. Show Answer Correct Answer: C) 5 June. 21. In the given food chain if the amount of energy at the fourth trophic level is 4 kJ, what will be the energy available at the producer level?Grass $\rightarrow$ Grasshopper $\rightarrow$ Frog $\rightarrow$ Snake A) 4kJ. B) 40kJ. C) 400kJ. D) 4000kj. Show Answer Correct Answer: D) 4000kj. 22. The ..... is the functional unit of environment. A) Genus. B) Biome. C) Class. D) None of the above. Show Answer Correct Answer: D) None of the above. 23. Trophic levels are formed by A) Only plants. B) Only animals. C) Only carnivores. D) Organisms linked in food chain. Show Answer Correct Answer: D) Organisms linked in food chain. 24. The ..... falling from the sky can be dangerous. A) Acid rain. B) Acid train. C) Acid grain. D) Acid pain. Show Answer Correct Answer: A) Acid rain. 25. Non biodegradable waste materials can be treated by composting technique. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. ← PreviousNext →Related QuizzesClass 10 Science Chapter 15 Our Environment Quiz 1Class 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 7Class 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