What term describes the solid rock underlying soil or loose overlying material?

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Multiple Choice

What term describes the solid rock underlying soil or loose overlying material?

Bedrock is the solid rock that lies beneath soil or the loose overlying material. It provides the continuous, underlying foundation that remains after the surface materials are weathered away into soil and regolith. This distinguishes it from parent material, which refers to the material the soil formed from, and from more general terms like substratum; bedrock specifically means the intact rock beneath the surface layers. Bedsoil isn’t a standard term, so the precise label for what’s underneath is bedrock.

Bedrock is the solid rock that lies beneath soil or the loose overlying material. It provides the continuous, underlying foundation that remains after the surface materials are weathered away into soil and regolith. This distinguishes it from parent material, which refers to the material the soil formed from, and from more general terms like substratum; bedrock specifically means the intact rock beneath the surface layers. Bedsoil isn’t a standard term, so the precise label for what’s underneath is bedrock.

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