Lowest portion of ground in soil profile
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Explanation:
Horizon A or Topsoil. It is also called the humus layer, which is rich in organic material. ...
Horizon B or Subsoil. Just below the topsoil lies another layer called subsoil or horizon-B. ...
Bedrock or Horizon C. Bedrock is also known as parent rock and lies just below the subsoil
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the lowest portion of ground in soil is bedrock...
hope it helps
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