rivers geography

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define confluencce
where two rivers meet and a join a large river
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define Mouth
the end of a river
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define drainage basin
an area of land drained by rivers and tributeries
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define tributaries.
where a small river joins a larger one
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define delta
A build up of sediment at the point where a river meets a sea or lake, due to the water velocity slowing and the river having less energy to carry the sedimen
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define Estuary:
the point where the river meets the sea
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define watershed
the imaginary line between other drainage baisin
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precipitation define
water falling in any form eg ice rain snow
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percolation
:downward movement of water from soil into rock
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infiltration:
when the water soaks into the soil
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ground water flow:
when the water flows through the rocks
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throughflow:
when the water travels through the soil to a river or the sea
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surface run
:when the water flows across the surface off the land
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TRANSPIRATION;
WHEN THE MOISTURE FROM THE PLANTS LEAVES ARE LOST TO THE ATMOSPHERE
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Hydraulic action -river erosion
the force of the river against the banks can cause air to be trapped in cracks
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Abrasion -river erosion
rocks carried along by the river wear down the river bed and banks.
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attrition -river erosion
when the pebbles smash into each other breaking down into smaller pieces
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solution-river erosion
when soluble particles dissolve into the river
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types of transportation in rivers
solution,traction,suspension and saltation
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define solution- river transportation
minerals are dissolved in the water and carried along in solution.
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define suspension-river transportation
fine light material transported across the water
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define saltation- river transportation
when pebbles and stones are bounced along the river bed.
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traction-river transportation
when large boulders and rocks are bounced along the river bed.
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define Deposition
when the water loses energy and it cant carry the material it deposits the material
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Other cards in this set

Card 2

Front

the end of a river

Back

define Mouth

Card 3

Front

an area of land drained by rivers and tributeries

Back

Preview of the back of card 3

Card 4

Front

where a small river joins a larger one

Back

Preview of the back of card 4

Card 5

Front

A build up of sediment at the point where a river meets a sea or lake, due to the water velocity slowing and the river having less energy to carry the sedimen

Back

Preview of the back of card 5
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