Water on the Land 1

Frage	Antworten
Long Profile	This shows the how the gradient of the river changes over its whole course
Cross Profile	Shows the cross section of a river at a specific point in its course
Upper course	Steep gradient V-shaped valley with steep sides Narrow, shallow channel
Middle course	Medium gradient Gently sloping valley sides Wider, deeper channel
Lower course	Gentle gradient Very wide, almost flat valley Very wide, deep channel
Vertical Erosion	Deepens river valley and channel, making it v-shaped. Upper course
Lateral Erosion	Widens river valley and channel, middle and lower course.
Four processes of erosion	Hydraulic action- shear forces of water breaks up rocks Abrasion- rocks scrape and rub channel Attrition- rocks smash into each other and become round and smooth Solution- river dissolves some rocks and carries them
Four processes of transportation	Traction- large boulders boulders moved along river bed Saltation-

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	Erstellt von joekeech1505 vor mehr als 8 Jahre