Question

why does an energy pyramid usually have no more than 4 - 5 levels?
there is not enough energy available to support more than 4 - 5 levels.
there isnt enough air for 4 - 5 levels.
there isnt enough water for 4 - 5 levels.
rewatch

Explanation:

In an energy pyramid, only about 10% of energy is transferred from one trophic level to the next. As the levels increase, the available energy decreases rapidly. Eventually, there is not enough energy to support organisms at higher - order trophic levels, which limits the number of levels to 4 - 5.

Answer:

There is not enough energy available to support more than 4 - 5 levels.