ZoologySelect the option which is formed from the topmost layer of soil.

Select the option which is formed from the topmost layer of soil.

  1. A

    Topsoil

  2. B

    Subsoil

  3. C

    Nitrogen

  4. D

    Bedrock

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    Solution:

    • The main layers of the soil are topsoil, subsoil and the parent rock. Each layer has its own characteristics.
    • The topsoil is the uppermost layer of the soil which contains humus.
    • Below the topsoil is the subsoil. The subsoil may contain some broken-down organic matter, but it is mostly made of weathered rocks and clay minerals
    • The bottommost layer is called the bedrock or parent rock from which the soil is formed.
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