EVERYDAY SCIENCE

Detailed explanation-1: -According to Lindeman’s 10% law, only 10% of energy is transferred to next trophic level.

Detailed explanation-2: -On average, only about 10% of the energy stored as biomass in one trophic level-e.g., primary producers-gets stored as biomass in the next trophic level-e.g., primary consumers.

Detailed explanation-3: -So, the correct answer is ‘Chemical energy’.

Detailed explanation-4: -Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.

Detailed explanation-5: -Final answer: In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of chemical energy.