Question

Check Yourself Fill in the blanks. 1. A-horizon is also known as 2. Bedrock is found below the 3. soil is best suitable for cultivation. 4. A vertical section showing distinct layers of soil is known as 5. Chemical weathering may be caused by​

Answer 1

Explanation:

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Here is your answer:-

1) The A horizon is the top layer of the mineral soil horizons, often referred to as 'topsoil'.

2)surface of earth

3)The ideal blend of soil for plant growth is called loam . Often referred to as topsoil or black dirt by landscape companies, loam is a mixture of sand, clay, and silt.

4)A vertical section through different layers of the soil is called the soil profile.Each layer differs in feel (texture), colour, depth and chemical composition. These layers are referred to as horizons.

5)Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

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