MCQ Quiz on Class 12 Biology Chapter 14 Ecosystem with Answers

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We have compiled the MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers Pdf free download covering the entire syllabus for NEET and Boards. Practice MCQ Questions for Class 12 Biology with Answers on a daily basis and score well in exams. Refer to the Ecosystem Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation.

Ecosystem Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers

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1. Which of the following is called as a detrivore?

 
 
 
 

2. Which of the following is expected to have the highest value (gm/m²/yr) in a grassland ecosystem?

 
 
 
 

3. An inverted pyramid of biomass can be found in which ecosystem?

 
 
 
 

4. Concentration of nitrogen remains constant by

 
 
 
 

5. Which of the following ecosystem has highest gross primary productivity:

 
 
 
 

6. Zone of atmosphere near the ground is

 
 
 
 

7. Ecology deals with:

 
 
 
 

8. Xerophyte Contains:

 
 
 
 

9. Maximum absorption of rainfall water is done by

 
 
 
 

10. The process of mineralisation by micro organisms helps in the release of:

 
 
 
 

11. Ultraviolet radiation from sunlight causes a reaction which produces

 
 
 
 

12. Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?

 
 
 
 

13. The most abundant element present in the plants is

 
 
 
 

14. Bacterial role in carbon cycle is

 
 
 
 

15. Which of the following is the most stable ecosystem?

 
 
 
 

16. Breakdown of detritus by microbial enzymes into simple forms is called?

 
 
 
 

17. The rate of conversion of light energy into chemical energy of organic molecules in an ecosystem is

 
 
 
 

18. Biosphere means:

 
 
 
 

19. During food chain the maximum energy is stored in :

 
 
 
 

20. Pyramid of numbers is:

 
 
 
 

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