Science, asked by dakshmoharwal13, 1 month ago

what is soil consist of ?

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Answered by miradas2236
1

4 )Answer The following Questions in brief.

A) Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. ... Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

B) The physical and chemical weathering processes that change parent material into soil include: Temperature changes — freezing and thawing. Erosion by water, wind, ice and gravity.

C) Soil is the thin layer of material covering the earth's surface and is formed from the weathering of rocks. It is made up mainly of mineral particles, organic materials, air, water and living organisms—all of which interact slowly yet constantly

D) There are six main soil types:

Clay.

Sandy.

Silty.

Peaty.

Chalky.

Loamy.

E) Clayey Soil will absorb more water than sandy soil.

The clay soil had the highest water holding capacity and the sand soil had the least. Clay particles are so tiny and have many small pore spaces that make water moves slower. Sandy soils have good drainage but low water and nutrient holding capacities.

F) The Two Causes Of Soil Erosion

(I(Deforestation for Agriculture Is One of the Top Causes of Soil Erosion. ...

(ii)Soil Erosion is Also Caused by Overgrazing, Which Causes Floods.

G) Soil conservation is the prevention of loss of the top most layer of the soil from erosion or prevention of reduced fertility caused by over usage, acidification, salinization or other chemical soil contamination

H)In terrace farming, a terrace is a piece of the sloped plane that is cut into a series of successively receding platforms, that resemble steps. This prevents rain from washing away soil, hence preventing soil erosion.

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Answered by dishi2007
1

Answer:

Soil consists of a solid phase of minerals and organic matter (the soil matrix), as well as a porous phase that holds gases (the soil atmosphere) and water (the soil solution). Accordingly, soil scientists can envisage soils as a three-state system of solids, liquids, and gases.

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