Question

difine the following of soil, humus, weathering,soil erosion​

Answer 1

• Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.

• In soil science, humus denominates the fraction of soil organic matter that is amorphous and without the "cellular cake structure characteristic of plants, micro-organisms or animals". 

• Weathering is the breaking down of rocks, soils, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms. 

• Soil erosion is the displacement of the upper layer of soil; it is a form of soil degradation. 

Answer 2

Answer:

soil:the soil is a mixture of organic matter and mineral that supports life.

Humus is partially decayed organic matter. It makes the soil porous, thereby, increasing its air and water holding capacity. It is rich in nutrients that promote plant growth. Being black, it absorbs heat to warm up the soil.

Weathering is the action of components of weather and climate materials over Earth.There are several processes within weathering which act either independently or together to affect the materials of the earth in order to cut them to fragmental state.

Soil erosion is the natural process in which the topsoil of a field is carried away by physical sources such as wind and water

Explanation:

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