The amount of energy that flows from one trophic level to another in a food chain is-

Correct option is B

Ans.(b) 10%

Explanation:
The correct answer is 10%. According to the 10% Energy Transfer Law, only 10% of the energy from one trophic level is transferred to the next in a food chain, while 90% is lost as heat, respiration, and metabolic activities. This principle, proposed by Raymond Lindeman, explains the decreasing energy levels as one moves up the food chain.

Information Booster:
● Producers (plants) store solar energy, transferring it to herbivores.
● Carnivores receive less energy due to multiple trophic levels.
● The energy pyramid is always upright, reflecting energy loss.
● Energy is used for growth, reproduction, and metabolic functions.
● Top predators get the least energy due to multiple transfers.
● The 10% rule limits the number of trophic levels in an ecosystem.