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Decomposing plant material.
The main source of organic matter in soil is decomposed material from dead plants, animals and the solid waste resulting from animal digestion. Insects and bacteria act on them breaking them down into smaller and smaller pieces that mix with the rest of the soil.
Plants...
The organic material in soil is humus.
Soil is not fabricated...nor is any organic material.
The organic level which is the uppermost level of the soil.
The decayed organic material in soil is called detrition. This is the broken down results of leaves and other organic substances.
dark soil
dark soil
compost
dark colored soil
Soil is created by worms. Worms eat organic material, and soil, and then they poop out soil.