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In an ecosystem, the 10% of energy avail...

In an ecosystem, the `10%` of energy available for transfer from one trophic level to the next is in the form of

A

heat energy

B

light energy

C

chemical energy

D

mechanical energy

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The correct Answer is:
C

In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of chemical energy. The producers or green plants capture the energy in sunlight and convert it into chemical energy which is passed onwards to the other trophic level.
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Food chains and the energy flow within an ecosystem provide an important understanding of contingencies and mutual dependencies of organisms. The given below flow chart depicts the energy flow within some members of a grassland ecosystem. The grass in the below ecosystem transducer 120,000 J of sunlight and fixes it into 12,000 J of energy. It is established that 90% of the energy of one trophic level is not passed to the next trophic level. Further assume that the energy transferred from one trophic level to the next is equally shared among the different organisms at that trophic level. Based on the above information, indicate the amount of energy that an organism C may have received from an organism from the previous trophic level.

Food chains and the energy flow within an ecosystem provide an important understanding of contingencies and mutual dependencies of organisms. The given below flow chart depicts the energy flow within some members of a grassland ecosystem. The grass in the below ecosystem transducer 120,000 J of sunlight and fixes it into 12,000 J of energy. It is established that 90% of the energy of one trophic level is not passed to the next trophic level. Further assume that the energy transferred from one trophic level to the next is equally shared among the different organisms at that trophic level. Tropic levels are formed by which of the following components?

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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