Question

what is the role of decomposers in the ecosystem?

Answer 1

they break down the organic material present in the earth that is they break down the complex substances into simpler. these help to replenish the soil fertility.

Answer 2

decomposers attack the dead bodies of animals , humans plants etc and break it into pieces and make them to mingle with the soil which acts as a manure which is very organic and good for the soil . in this way what ever minerals we take in during our living is returned to the soil , which enrich`s the  soil and makes it fertile . and good for plant growth .