Front

Ecological system; an area whose physical limits are described and that is characterized by its biotic and abiotic factors.

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Ecosystem:

Definition

Front

- Tundra

- Desert

- Forest

- Rainforest

- Coral Reef

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Ecosystem:

Examples

Front

the breakdown of rocks by physical or chemical processes

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Weathering:

Definition

Front

Chemical Weathering: rusting or dissolving

Physical Weathering: frost wedging or abrasion

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Weathering:

Examples

Front

organic matter in soil produced from the decomposition of plants and animals

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Humus:

Definition

Front

The Organic (O) Horizon in Soil

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Humus:

Example

Front

the process in which water carries nutrients from one layer of soil to a lower layer of soil

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Leaching:

Definition

Front

soil that has had minerals and nutrients removed from it

Back

Leaching:

Example

Front

several chemically and physically unique layers of soil running parallel to the soil surface

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Soil Horizons:

Definition

Front

O Horizon

A Horizon

E Horizon

B Horizon

C Horizon

R Horizon

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Soil Horizons:

Examples