the number of trophic levels in a food chain is limited

explain and give reason!!!

According to 10% law f energy transfer, only 10% of the energy from one level goes to the next level , that is, in case of plants, only 10% of their energy is transferred to the primary consumers or herbivores. This process continues. Since so little energy is transferred from one level to another, the big carnivores get only a very little energy and here the trophic level stops as 10% of such a small amount of energy cannot sustain another life.