Soil can best be described as the
a. layer of bedrock four layers beneath the earth's surface.
b. sandy bottom of the ocean's floor.
c. third layer beneath the earth's surface.
d. loose covering of weathered rocks and decaying organic matter.

The correct option is D. Soil can best be described as the loose covering of weathered rocks and decaying organic matter. There are different types of soil, the type of soil formed depends majorly on the type of parent rock from which the soil is formed and the amount of organic matter present in the soil.

The rocks expand when there hot/warm  and contract when they are cold.