2. Which one of the following has the largest population in a food chain?
(a) Producers
(b) Primary consumers
(c) Secondary consumers
(d) Decomposers
The answer is (d) Decomposers
Decomposers make up the greatest population in the food chain and are an essential component of it.
Decomposers' primary job is to consume rotting and dead stuff and break down compound molecules into simpler ones.
Numerous kinds of microorganisms, including bacteria and fungi, are involved in decomposers.
Decomposers are microbes including bacteria and fungi. So the correct answer is option D, because microbes are invisible and they are in high quantity to decompose any dead particle.
Thank you.