Final answer:
A soil profile is the vertical arrangement of different soil horizons. The main horizons include the topsoil, subsoil, and parent material.
Step-by-step explanation:
A soil profile refers to the vertical arrangement of different layers or horizons in the soil. There are typically three main horizons in a soil profile: the topsoil, subsoil, and parent material.
The topsoil, or A horizon, is the uppermost layer where most plant growth occurs. It is rich in organic matter, minerals, and nutrients. The subsoil, or B horizon, is located beneath the topsoil and has a higher concentration of minerals but less organic matter. The parent material, or C horizon, is the deepest layer and consists of weathered rock that eventually breaks down to form soil.
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