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Weathering/Erosion

TermDefinition
Weathering The slow breakdown of rock into smaller pieces and sediment.
Mechanical Weathering The break down of rock through physical means.
Chemical Weathering The break down of rock due to a chemical reaction.
Erosion The movement of rock and soil from one place to another.
Deposition When rock, soil, and sediment get dropped in a new location.
chemical weathering examples acid rain, plant acid, oxidation
mechanical weathering examples ice wedging, abrasion, exfoliation, plants, animals
erosion examples gravity/mass movement, water, wind, waves
Soil a mixture of weathered rock, mineral fragments, water, air, and humus (decayed plants and animals)
Rivers v-shaped valleys and canyons can be caused from these
Glaciers frozen "rivers of ice" that can make u-shaped valleys
human effects on erosion clear cutting/deforestation, construction, farming, and strip mining
ways to reduce erosion planting vegetation, silt fencing, retaining walls, terracing, contour plowing, and crop rotation
law of superposition states that older stuff will be found in the bottom layer of soil
Created by: MsHollinger
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