Class 8 Science MCQs - Chapter 7
Man Impact on Ecosystem Quiz Questions & Answers PDF Download - 3
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Man Impact on Ecosystem Exam Questions and Answers PDF Download: Test 3
Algae grows on surface of water and hence the becomes barrier for plants in water by blocking
- sunlight
- heat
- fresh water
- temperature
Technology can be use to harness renewable sources of
- energy
- food
- light
- heat
Many animals have become endangered species due to
- over hunting
- over feeding
- global warming
- forestation
Animal which is hunted for its glands which is used to make perfumes is
- deer
- cat
- antelope
- duck
During decomposition of buried waste explosion can occur due to production of gas
- oxygen
- methane
- carbon dioxide
- nitrogen
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