MCQ Science Curiosity Chapter 2 Class 8 CBSE Board

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The Invisible Living World: Beyond Our Naked Eye

1. What gas is likely produced by yeast in the test tube B experiment on page 18?

Question 1 of 20

2. Why does the farmer growing bean crops avoid nitrogen fertilizers?

Question 2 of 20

3. What is Snehal testing in the pit experiment described in question 4 on page 18?

Question 3 of 20

4. Which microorganism lives in the gut and aids digestion?

Question 4 of 20

5. Which microorganism makes bread and cakes soft and fluffy?

Question 5 of 20

6. What is the primary role of microorganisms in soil suspension observed in Activity 2.5?

Question 6 of 20

7. Why do microorganisms break down plant and animal waste?

Question 7 of 20

8. What is the benefit of growing legumes in crop rotation?

Question 8 of 20

9. What is the primary source of oxygen produced by microalgae?

Question 9 of 20

10. Why is Spirulina considered a feasible livelihood opportunity?

Question 10 of 20

11. What happens to milk in bowl A in Activity 2.9?

Question 11 of 20

12. What is the main difference between plant and bacterial cells?

Question 12 of 20

13. What is the role of the coverslip in microscope slide preparation?

Question 13 of 20

14. What is the purpose of adding sugar in the yeast experiment in Activity 2.8?

Question 14 of 20

15. Why do nerve cells have a branched structure?

Question 15 of 20

16. What is the significance of the term "Krimi" in ancient Indian texts?

Question 16 of 20

17. What happens to the bread slice left near the sink in question 7 on page 18?

Question 17 of 20

18. Why does curd become more sour when left out for a day?

Question 18 of 20

19. What is the primary function of muscle cells in the stomach?

Question 19 of 20

20. What is the benefit of using a foldscope over a laboratory microscope?

Question 20 of 20


 

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