In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of
(a) heat energy
(b) light energy
(c) chemical energy
(d) mechanical energy
(c) The 10% of energy accessible for transfer from one trophic level to the next in an ecosystem is in the form of chemical energy.
The autotrophs capture the energy present in sunlight and convert it into chemical energy which is passed on to other trophic levels.
Therefore option (C) is correct