APES 4.2

Front

What is the process of breaking down rocks called?

Back

Weathering

Front

Which layer of soil is largely composed of humus and minerals?

Back

A horizon

Front

What is the loss of the ability of soil to support plant growth called?

Back

Degradation

Front

Which of the following is NOT a role of soil in ecosystems?

Back

Filtering water

Front

What is the process of soil formation based on the activity of decomposers?

Back

Soil organisms

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface by wind or water flow and then transported to another location.

Front

Define soil degradation.

Back

The decline in soil quality caused by its improper use, usually for agricultural, industrial, or urban purposes.

Front

What is the role of soil in nutrient recycling?

Back

Soil acts as a medium for the decomposition of organic matter, returning nutrients to the ecosystem.

Front

What is the significance of the B horizon in soil?

Back

The B horizon, or subsoil, is where minerals and nutrients leached from the upper layers accumulate.

Front

Explain the term 'parent material' in soil formation.

Back

Parent material is the underlying geological material (bedrock or unconsolidated deposits) from which soil horizons develop.