Plants capture $............ \%$ of photosynthetically active radiation $(PAR)$.

  • A
    $2-10 \%$
  • B
    $50 \%$
  • C
    $100 \%$
  • D
    $1-2 \%$

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The flow of energy declines from lower to higher trophic levels in an ecosystem,which is mainly explained by:

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Reason : An animal like kite cannot be a part of a food web.

"During the transfer of energy from one trophic level to another, some energy is lost as heat." Which law of thermodynamics does this statement represent?

If $10,000 \; J$ of energy falls on a piece of land,what is the energy available at the $T_2$ trophic level (in $; J$)?

The main source of energy in an ecosystem is .........

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