MCQ Class 10 Science Chapter 13 Our Environment

Advertisement

MCQ’s For All Chapters – Science Class 10th

1. What is an ecosystem made up of?

Question 1 of 20

2. Which of the following is a natural ecosystem?

Question 2 of 20

3. Which organisms are called producers?

Question 3 of 20

4. Which organisms are responsible for breaking down dead remains?

Question 4 of 20

5. In a food chain, herbivores are also called:

Question 5 of 20

6. What is the average percentage of energy transferred from one trophic level to the next?

Question 6 of 20

7. Why do food chains generally have only three or four steps?

Question 7 of 20

8. The interconnected series of food chains is called:

Question 8 of 20

9. Which harmful process causes toxic chemicals to accumulate at higher levels of food chains?

Question 9 of 20

10. Which gas forms a protective layer against UV radiation?

Question 10 of 20

11. Which chemicals are mainly responsible for ozone depletion?

Question 11 of 20

12. In which year did UNEP forge an agreement to freeze CFC production?

Question 12 of 20

13. Substances that are broken down by biological processes are called:

Question 13 of 20

14. Which of these is non-biodegradable?

Question 14 of 20

15. What is the main problem with non-biodegradable waste?

Question 15 of 20

16. Which type of disposable cups causes loss of fertile top-soil if used on a large scale?

Question 16 of 20

17. Which of the following is an environment-friendly practice?

Question 17 of 20

18. Which type of radiation causes ozone formation?

Question 18 of 20

19. What percentage of sunlight energy is captured by plants in terrestrial ecosystems?

Question 19 of 20

20. Why is damage to the ozone layer a cause of concern?

Question 20 of 20


 

MCQ
Quiz

Comments

  1. Study guy says:
    October 3, 2025 at 10:31 am

    Very ЁЯСНЁЯСН good

    Reply
  2. Aastha Mishra says:
    December 20, 2024 at 12:27 pm

    Better experience

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Advertisement

CBSE Board English Medium

CBSE Board Hindi Medium

рдмрд┐рд╣рд╛рд░ рдмреЛрд░реНрдб

рдЙрддреНрддрд░ рдкреНрд░рджреЗрд╢ рдмреЛрд░реНрдб

рдорд╣рд╛рд░рд╛рд╖реНрдЯреНрд░ рдмреЛрд░реНрдб

рдордзреНрдп рдкреНрд░рджреЗрд╢ рдмреЛрд░реНрдб

ркЧрлБркЬрк░рк╛ркд ркмрлЛрк░рлНркб

PSC Exam Preparation

Install App

Install our app for the best experience!