Soil Formation

Front

What is the first step of soil formation?

Back

Weathering of parent rock.

Front

What term describes all natural surface features of a particular area?

Back

Topography.

Front

What does the B soil horizon contain?

Back

Leached materials and little to no humus.

Front

What does the C soil horizon contain?

Back

Partially weathered parent rock.

Front

How do decaying leaves affect rock in the soil beneath them?

Back

They could increase the amount of chemical weathering of rock and soil formation.

Front

What is humus?

Back

Decomposed organic material in soil that enriches it.

Front

What is the role of weathering in soil formation?

Back

It breaks down parent rock into smaller particles, contributing to soil.

Front

What is the difference between physical and chemical weathering?

Back

Physical weathering breaks rocks into smaller pieces without changing their composition, while chemical weathering alters the minerals in the rock.

Front

What is the significance of the A soil horizon?

Back

It is the top layer of soil, rich in organic material and nutrients.

Front

What factors influence soil formation?

Back

Climate, organisms, topography, parent material, and time.