MCQ Science Curiosity Chapter 13 Class 8 CBSE Board

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Our Home: Earth, a Unique Life Sustaining Planet

1. What is the female gamete in animals called?

Question 1 of 20

2. What is the fusion of male and female gametes called?

Question 2 of 20

3. What is the transfer of pollen from one flower to another called?

Question 3 of 20

4. What is formed after fertilization in plants?

Question 4 of 20

5. What develops from the zygote in animals?

Question 5 of 20

6. Where does fertilization occur in fish and frogs?

Question 6 of 20

7. In birds, the fertilized egg develops after:

Question 7 of 20

8. In most mammals, the embryo develops:

Question 8 of 20

9. What is the major environmental challenge caused by greenhouse gases?

Question 9 of 20

10. Which gases mainly cause the greenhouse effect?

Question 10 of 20

11. Long-term changes in temperature and weather patterns are called:

Question 11 of 20

12. What may happen if global temperature rises?

Question 12 of 20

13. What is the loss of different species of plants and animals called?

Question 13 of 20

14. Which human activity increases air pollution?

Question 14 of 20

15. Pollution from vehicles and factories mainly affects:

Question 15 of 20

16. What is one effect of air pollution on humans?

Question 16 of 20

17. What helps reduce pollution and waste?

Question 17 of 20

18. Which type of energy is considered clean and renewable?

Question 18 of 20

19. Which systems of Earth interact to support life?

Question 19 of 20

20. Why must humans protect Earth's environment?

Question 20 of 20


 

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