Question

which of the following shows energys pathway in an ecosystem?
mechanical → heat → technical → light
mechanical → light → technical → manual
mechanical → manual → heat → light
light → chemical → mechanical → heat

Explanation:

In an ecosystem, producers (like plants) convert light energy (from the sun) into chemical energy (through photosynthesis). Then, consumers eat the producers or other consumers. When organisms use this chemical energy for activities (such as moving - mechanical energy), some of it is lost as heat (due to metabolic processes).

Answer:

light → chemical → mechanical → heat