Compost, leaf mould, sea weed, peat, are four examples.
Humus can do such a thing like that
farmers
yes
their bodies decompose and enrich the soil so that plants can grow
the rivers flood and that means the soil is open to farm and grow crops.
earthworms
Humus can do such a thing like that
farmers
snail enriches the soil by its waste(poo)
yes
their bodies decompose and enrich the soil so that plants can grow
The farmland was replowed to enrich the soil.
fertilizer
the rivers flood and that means the soil is open to farm and grow crops.
Yes it can, a decaying body is essentially fertilizer and nourishment for the soil.
This statement can be interpreted variously. It probably means that some people make contributions that enrich our lives, and other people only enrich the ground they are buried in.
root nodules