Weathering & Erosion

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What is weathering?

Back

The process of breaking down rocks and minerals into smaller pieces through physical, chemical, or biological means.

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What is erosion?

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The process of transporting sediment and soil from one location to another, often by wind, water, or ice.

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What is deposition?

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The process by which sediment settles out of the transporting medium and accumulates in a new location.

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What are the two main types of weathering?

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Physical weathering and chemical weathering.

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What is physical weathering?

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The mechanical breakdown of rocks into smaller pieces without changing their chemical composition.

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What is chemical weathering?

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The breakdown of rocks through chemical reactions, often involving water and acids, changing the minerals in the rock.

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What factors influence the rate of weathering?

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Climate, rock type, soil composition, and the presence of vegetation.

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How does climate affect weathering?

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Warm, wet climates typically increase the rate of chemical weathering, while cold climates may enhance physical weathering.

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What is the role of vegetation in erosion?

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Vegetation helps to anchor soil in place, reducing the likelihood of erosion by wind and water.

Front

What is a stream's gradient?

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The slope or steepness of a stream, which affects its velocity and ability to transport sediment.