Question

Nutrients are recycled in ecosystems but energy is not. Explain why there are no more than 4 trophic levels in food chain?

Answer 1

Answer:

According to Law of Conservation of energy:

Energy is neither created nor destroyed.

But we know that Energy is not created but it converts into another energy.

and for doing work, we need energy.

Explanation:

There are many reasons which are as follows :

1. If we see at ten percent rule:

After 4th tropic level,the energy obtained by the consumer will be 0.

2 It can also leed to increse in Biomagnification.