Soil Formation and Composition (from Notes 12.1)

Front

What are the main components contained in soil?

Back

Minerals, organic matter, air, and water.

Front

What is the term for the movement of soil from one place to another?

Back

Erosion.

Front

Soil formation begins with the weathering of what material?

Back

Rock.

Front

What are soil horizons?

Back

Distinct layers of soil.

Front

Is erosion the physical and chemical breakdown of rocks?

Back

FALSE.

Front

What is humus?

Back

Decomposed organic matter in soil that enriches it.

Front

What role do earthworms play in soil?

Back

They aerate the soil and help in the decomposition of organic matter.

Front

What is the process of weathering?

Back

The breakdown of rocks into smaller particles due to environmental factors.

Front

What is deposition in the context of soil?

Back

The process by which soil and sediment are added to a landform or land mass.

Front

What is the difference between organic and inorganic matter in soil?

Back

Organic matter comes from living organisms, while inorganic matter consists of minerals and rocks.