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Geography

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1WeatheringRocks are worn down usually by the weather (in situ.)
2ErosionThe wearing down of rocks- usually in rivers or on coasts
3TransportationMovement of eroded material
4DepositionDropping of material that has been carried.
5What are the four types of erosion?Corrosion/ Sollution
Abrasion
Attrition
Hydraulic action
6What happens in sollution?Water disolves soluble materials.
7What happens in abrasion?The bed load in the river eroads away the river bed and river banks.
8What happens in attrition?Bed load wears other bed load down.
(This doesn't change the river shape.)
9What happens in hydraulic action?The force of fast flowing water crashes against river banks.
10What are the four types of transporation?Solution
Suspension
Traction
Saltation
11What happens in solution?minerals are dissolved in the water and carried along in solution.
12What happens in suspension?Fine, light material e.g. sand is carried along in water.
13What happens in traction?Large boulders and rocks are rolled along the river bed.
14What happens in Saltation?Small pebles and stones are bounced along the river bed.