Choose the option showing the correct arrangement of different layers of soil from top to bottom.
A
Topsoil - Subsoil - Bedrock
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B
Subsoil - Bedrock - Topsoil
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C
Bedrock - Topsoil - Subsoil
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D
Topsoil - Bedrock - Subsoil
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Solution
The correct option is A Topsoil - Subsoil - Bedrock
Topsoil is the topmost layer of the soil. It is usually made up of decomposed plants and animals. Subsoil is a layer of the soil that is just below the topsoil but above the bed rock. It is made up of many layers of soil and small rocks. Bedrock is the solid innermost layer, mainly made up of rocks. The correct arrangement of different layers of soil from top to bottom is as follows: Topsoil - Subsoil - Bedrock