How is humus formed ?
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75
Humus is formed when organic material (such as leaves, dead animals etc.) is degraded by a combination of fungi, bacteria , microbes and other animals (earthworms for example) that reside in the soil
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Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up.
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