Question

Which of the following happens to the amount of 'energy' when it is passed on from one trophic level to another in an ecosystem?

• A. There is no definite reason
• B. It decreases
• C. It increases
• D. It remains constant

Answer 1

The correct option is B It decreases

Energy is transferred from one trophic level to the other in a pyramid. The amount of energy available decreases at each trophic level because only 10% energy is transferred from one trophic level to another. Some energy is used for metabolic processes. So, the energy flow goes on decreasing with the increase in the trophic level.

Thus, the correct answer is option B.