Question

The layer of the soil that is dark in colour , has a high content of organic matter and is vital for plant growth is known as​

Answer 1

Answer:

Humus

The dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth.

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Answer 2

Answer:

Explanation:

partially decomposed biomass, is called humus. This solid, dark-coloured component of soil plays a significant... ... Below this surface-litter layer is a distinct, strongly compacted humus layer; a layer of mineral soil underlies the humus. Fungi and small arthropods are the most common organisms.