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GEOG (1) River Landscapes & Processes > Changes in the characteristics of a river and its valley II > Flashcards

Changes in the characteristics of a river and its valley II Flashcards

1
Q

What type of erosion is there in the upper course of a river

A

vertical erosion

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2
Q

What is the gradient in the upper course of a river

A

Steep gradient

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3
Q

What is the valley shape in the upper curse of a river

A

A v-shaped valley

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4
Q

How wide is the channel in the upper course of a river

A

Narrow

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5
Q

How deep is the channel in the upper course of a river

A

shallow

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6
Q

What is the velocity of the water in the upper course of a river

A

The water is slow flowing

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7
Q

What is the discharge like in the upper course of a river

A

There is a small discharge in the upper course of the river

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8
Q

What is the load in the upper course of a river like

A

The load in the upper course of the river is made up of large rocks

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9
Q

What type of erosion is there in the middle course of a river

A

lateral erosion

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10
Q

What is the gradient like in the middle course of a river

A

It is a medium gradient

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11
Q

What is the valley shape in the middle course of a river

A

A u-shaped valley

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12
Q

How wide is the channel in the middle course of a river

A

It is reasonably wide - wider than the upper course but narrower than the lower course

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13
Q

How deep is the river channel in the middle course

A

It is reasonably deep - deeper than the upper course but shallower than the lower course

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14
Q

What is the velocity like in the middle course of a river

A

It is quite fast

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15
Q

What is the discharge like in the middle course of a river

A

The discharge is quite high in the middle course of the river

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16
Q

What is the load in the middle course of a river like

A

small material e.g pebbles

17
Q

What type of erosion is there in the lower course of a river

A

lateral erosion

18
Q

What is the gradient like in the lower course of a river

A

In the lower course, the river has a very flat, gentle gradient

19
Q

What is the valley shape in the lower couse of a river

A

A broad, flat bottomed valley

20
Q

How wide is the channel in the lower course of a river

A

The channel is at its widest

21
Q

How deep is it at the lower course of a river

A

The channel is at its deepest at the lower course

22
Q

What is the velocity of the river in the lower course

A

The river has the highest velocity at the lower course

23
Q

What is the discharge like in the lower course of a river

A

The discharge is at its highest in the lower course of a river

24
Q

What is the load like in the middle course of a river

A

The load consists of fine light silt and suspend material in the lower course of a river

GEOG (1) River Landscapes & Processes (10 decks)

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