River Erosion Flashcards

1
Q

How does a river erode its channel?

A

By Abrasion, Hydraulic Action, Attrition and Solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is ‘Abrasion’?

A

Where sand and pebbles are dragged along the river bed, wearing it away

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is ‘Hydraulic Action’?

A

Where fast-flowing water is forced into cracks, breaking up thr bank over time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is ‘Attrition’?

A

Where rocks and stones wear each other away as they knock together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is ‘Solution’?

A

Where rocks such as limestone are dissolved in acid rainwater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does a river’s energy allow it to do?

A

Transport, or carry, boulders and stones downstream. These stones then erode the rivers channel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly