Question

What will happen to the garbage, and dead animals and plants in their absence? Will the natural replenishment of the soil take place, even of decomposers are not there?

Answer 1

Decomposers break down dead plants and animals. They also break down the waste of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, dead matter and waste would pile up. So the nutrients in them are recycled back into the ecosystem to be used again. Bacteria are also key organisms at the decomposer level. Hence the natural replenishment of soil does not takes place if decomposers are absent.