Question

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

a) Decrease in energy at higher trophic levels
b) Deficient food supply
c) Polluted air
d) Water

Answer 1

Explanation:

According to the 10 per cent law, the amount of energy decreases in each trophic level, and hence the number of trophic levels in a food chain is limited.

Answer 2

Answer:

a) Decrease in energy at higher trophic level