Question

what is composed why is it beneficial for soil

Answer 1

you mean compost?
compost is a natural fertiliser.it fertiles the soil.

Answer 2

Answer:

A good, healthy soil has sufficient air, water, minerals, and organic material to promote and sustain plant life. ... Humus improves soil structure, providing plants with water and minerals. The inorganic material of soil is composed of rock, slowly broken down into smaller particles that vary in size.

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