Soil

Front

What is soil?

Back

Soil is a natural resource composed of minerals, organic matter, water, and air that supports plant life.

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What is bedrock?

Back

Bedrock is the solid rock layer beneath the soil that is the source of soil formation.

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What are soil horizons?

Back

Soil horizons are distinct layers of soil that differ in composition, texture, and color.

Front

What is the A horizon?

Back

The A horizon, or topsoil, is the uppermost layer of soil rich in organic material and nutrients.

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What is the B horizon?

Back

The B horizon, or subsoil, is the layer below the topsoil that contains minerals leached from the upper layers.

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What is the C horizon?

Back

The C horizon consists of weathered rock and soil material that has not yet formed into soil.

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What is humus?

Back

Humus is the dark, organic material in soil formed from decomposed plant and animal matter.

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What is terrace farming?

Back

Terrace farming is a soil conservation method that involves creating steps on a slope to reduce soil erosion.

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What is contour plowing?

Back

Contour plowing is a farming practice where plowing is done along the contours of the land to prevent soil erosion.

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What is soil erosion?

Back

Soil erosion is the process by which soil is removed from the land surface, often due to water or wind.