What is humus, weathering and soil profile
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The process by which huge rocks are broken down into small particles by the action of sun's heat, wind, rain and flowing river water, etc, is called weathering. The organic matter formed by the decomposition of dead plants and animals by the micro-organisms (like certain bacteria and fungi) is called humus
It gradually weathers into soil whenever it is exposed. Soil Composition and Texture. Soil is a mixture of rock particles, minerals, decayed organic material, air, and water. Humus – Dark colored the decayed organic material in soil; helps create spaces in soil for air and water; rich in elements that plants need.The soil profile is a vertical section of the soil that depicts all of its horizons. The soil profile extends from the soil surface to the parent rock material. The regolith includes all of the weathered material within the profile. The regolith has two components: the solum and the saprolite.
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