Question

Activity: Write in your own words and understanding how do soil formed and identify the factors that helps in the formation of soil.

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Answer 1

Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.

Step-by-step explanation:

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Answer 2

Factors of soil formation :

Soil is formed by the weathering of rocks which takes place over millions of years. Hence, soil formation is a slow process.

Soil formation takes place in different layers namely topsoil, subsoil, partly weathered rock and parent rock or bedrock.

The topsoil is rich in humus and supports all types of vegetation. Subsoil consists of sand, silt, clay and holds moisture.

Factors Responsible for Soil Formation :

• The parent rock determines the colour, the texture and mineral composition.

• Climate controls the rate of weathering, time decides the maturity of soil.

• Plants and animals contribute to humus formation and the relief of the land determines the accumulation of soil.