Soil Formation & Composition

Front

What is a soil profile?

Back

Arrangement of the soil horizons.

Front

What was one of the major causes of the Dust Bowl?

Back

Removal of grasses and overfarming.

Front

What do we call the small creatures and plants that die over time?

Back

Organic Matter.

Front

Soil formation begins with the weathering of what material?

Back

Rock.

Front

What materials are formed from rocks and organic matter?

Back

Soils.

Front

What is the top layer of soil called?

Back

Topsoil.

Front

What is humus?

Back

Decomposed organic matter that enriches soil.

Front

What are soil horizons?

Back

Layers of soil that differ in color, texture, and composition.

Front

What role do earthworms play in soil health?

Back

They aerate the soil and help decompose organic matter.

Front

What is soil erosion?

Back

The removal of the top layer of soil by wind or water.