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Question

Ecological efficiency is


  1. Food primary assimilatedfood energy ingested×100

  2. Net primary productivityGross primary productivity×100

  3. Gross primary productivityincident total solar radiation×100

  4. Volume of CO2evolvedvolume of O2 consumed


Solution

The correct option is B

Net primary productivityGross primary productivity×100


Ecological efficiency = Net primary productivityGross primary productivity×100

It is the efficiency by which transfer of energy from one trophic level to the other.

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