IB ESS Soil

Front

What is water retention?

Back

The amount of water a soil is able to hold, related to a soil material's porosity and permeability.

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What is erosion?

Back

The process in which the materials of Earth's surface are loosened and transported away, usually by water or wind.

Front

What is soil erosion?

Back

The wearing away of top soil, a naturally occurring process that affects all land forms.

Front

What is the top layer of soil mostly made of?

Back

Mostly organic material (humus).

Front

What is desertification?

Back

The process by which land or semi-dry areas become more desert-like.

Front

What is porosity in soil?

Back

The measure of the void spaces in a material, indicating how much water it can hold.

Front

What is permeability in soil?

Back

The ability of soil to transmit water and air, affecting water retention and drainage.

Front

What is humus?

Back

A dark organic material in soil produced by the decomposition of plant and animal matter.

Front

What is the role of soil in the ecosystem?

Back

Soil provides nutrients, water, and a habitat for organisms, playing a crucial role in plant growth.

Front

What is the impact of erosion on soil health?

Back

Erosion can lead to loss of topsoil, reducing soil fertility and affecting agricultural productivity.