Earthworms burrow through the soil, ants live in large colonies and burrows in soil, centipedes live under stones and in soil, some bacteria living in soil fix nitrogen for the plant to take up and microorganisms decompose dead plants and animals.
Earthworms burrow through the soil, ants live in large colonies and burrows in soil, centipedes live under stones and in soil, some bacteria living in soil fix nitrogen for the plant to take up and microorganisms decompose dead plants and animals.
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