OBJECTIVE FORESTRY

Detailed explanation-1: -Bedrock is the hard, solid rock beneath surface materials such as soil and gravel. Bedrock can be made of most types of rock, such as granite, limestone, or like this piece of bedrock, sandstone. Bedrock is the hard, solid rock beneath surface materials such as soil and gravel.

Detailed explanation-2: -bedrock (n.) also bed-rock, in geology, “solid rock lying under soil or gravel, ‘’ 1850, from bed (n.) + rock (n.). Figurative use by 1869; as an adjective by 1881.

Detailed explanation-3: -The substratum is the material found on top of the bedrock, often made up of loose, rocky particles. Sometimes it’s called unconsolidated bedrock, saprolite, regolith, parent material or soil horizon C.