eVidyarthi

MCQ Chapter 18 General Science Class 8 Maharashtra Board

MCQ For All Chapters – General Science Class 8

Ecosystems

1. What percentage of the Earth’s surface is covered by aquatic ecosystems?

Question 1 of 20

2. Which is a primary consumer in a freshwater ecosystem?

Question 2 of 20

3. What is the role of decomposers in a freshwater ecosystem?

Question 3 of 20

4. Which is a secondary consumer in a marine ecosystem?

Question 4 of 20

5. What is the primary source of nutrients in a marine ecosystem?

Question 5 of 20

6. Who would be most affected if all honey bees were destroyed?

Question 6 of 20

7. Which human activity increases stress on ecosystems due to population growth?

Question 7 of 20

8. What is a consequence of urbanization on ecosystems?

Question 8 of 20

9. How does industrialization affect ecosystems?

Question 9 of 20

10. What is a negative effect of tourism on ecosystems?

Question 10 of 20

11. How do large dams affect ecosystems?

Question 11 of 20

12. Which biotic factor is affected by a dam?

Question 12 of 20

13. What can wars destroy in an ecosystem?

Question 13 of 20

14. Who coined the term "ecosystem"?

Question 14 of 20

15. What is another name for an ecosystem mentioned in the document?

Question 15 of 20

16. Which biome contains many small ecosystems?

Question 16 of 20

17. Which of the following is a land biome?

Question 17 of 20

18. What determines the types of biotic factors in an ecosystem?

Question 18 of 20

19. Which component is NOT part of organic substances in an ecosystem?

Question 19 of 20

20. What is the main difference between evergreen forests and grasslands?

Question 20 of 20

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