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Which of the following limits the number...

Which of the following limits the number of trophic levels in a food chain ?

A

Decrease in energy at higher trophic levels

B

Sufficient food supply

C

Polluted air

D

Water

Text Solution

Verified by Experts

The correct Answer is:
A
As we move from one trophic level to the next, there is loss of energy. Therefore, lowering of energy at subsequent levels limits the number of trophic levels in a food-chain.
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OSWAL PUBLICATION-OUR ENVIRONMENT-NCERT EXEMPLAR (MULTIPLE CHOICE QUESTIONS)
  1. In a food chain, the third trophic level is always occupied by

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  2. An ecosystem includes :

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  3. In the given food chain, suppose the amount of energy at fourth trophi...

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  4. Accumulation of non-biodegradable pesticides in the food chain in incr...

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  5. Depletion of ozone is mainly due to

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  6. Organisms which synthesise carbohydrates from inorganic compounds by u...

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  7. In an ecosystem, the 10% of energy available for transfer from one tro...

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  8. Organisms of a higher trophic level which feed on several types of org...

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  9. Flow of energy in an ecosystem is always

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  10. Excessive exposure of human to UV-rays results in (i) damage to imm...

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  11. In the following groups of materials, which group(s) contains only non...

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  12. Which of the following limits the number of trophic levels in a food c...

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  13. Which of the following statement is incorrect?

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  14. Which group of organisms are not constituents of a food chain ? (i) ...

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  15. The percentage of solar radiation absorbed by all the green plants for...

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  16. In the given figure, the various trophic levels are shown in a pyramid...

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  17. What will happen if deer is missing in the food chain given below ? ...

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  18. The decomposers in an ecosystem :

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  19. If a grasshopper is eaten by a frog, then the energy transfer will be ...

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  20. Disposable plastic plates should not be used because :

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