Term
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Definition
| vertical section of soil layers |
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Term
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Definition
| physical process that breaks rocks apart without changing their chemical composition |
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Term
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Definition
a soil layer in the soil profile, most areas have 3- the
A_______(top soil layer)
B________ (middle layer)
C________(bottom layer)
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Term
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Definition
| leaves, twigs and other organic matter in the A horizon that changes to humus when it is exposed to decomposing organisms |
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Term
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Definition
| removal of minerals that have been disolved in water |
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Term
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Definition
| mechanical weathering process that occurs when water freezes in the cracks of rocks and expands breaking the rock apart |
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Term
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Definition
| differs depending on location and slope |
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Term
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Definition
| mechanical or chemical process that breaks down rocks into smaller and smaller fragments |
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Term
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Definition
| weathering that occurs when air, water, and other substances react with minerals in rocks |
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Term
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Definition
process that occurs when a material is exposed to water and oxygen
(iron will rust) |
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Term
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Definition
| the pattern of weather that occurs in a particular area over many years |
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Term
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Definition
| because of forming or natural disasters in an area |
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Term
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Definition
| material that supports vegetation and is a mixture of weathered rock, mineral fragments, organic matter, water, and air; may take thousands of years to form |
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Term
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Definition
| dark colored, decayed organic matter in soil that serves as a nutrient source for plants and promotes good soil structure, and helps soil hold water |
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