Rivers

Question 1

Erosion

Answer 1

Removal of rocks and soil from one place to another

Question 2

Attrition

Answer 2

Wearing away of rocks and stones in the river as they bump into each other

Question 3

Corrosion

Answer 3

Wearing away of the riverbed and banks by stones and gravel

Question 4

Hydraulic action

Answer 4

Wearing away of the river bed and banks by the force of the water

Question 5

Meander

Answer 5

Bend in the river

Question 6

Ox bow lake

Answer 6

A U-shaped body of water that forms when a meander is cut off from the main river

Question 7

Vertical erosion

Answer 7

Moving downward. Making the channel bed deeper

Question 8

Lateral erosion

Answer 8

Occurring across the river bed outwards. Makes ricer wider

Question 9

GIS

Answer 9

Geographical information systems. Layering of information on maps. Allows you to look for patterns and correlations to make decisions.

Question 10

Where does waterfalls retreat?

Answer 10

Upwards

Question 11

What do waterfalls create

Answer 11

Plunge pools

Question 12

What two types rocks do waterfalls need to retreat?

Answer 12

Soft rock and hard rock

Question 13

Soft rocks

Answer 13

On the bottom layer and erodes away

Question 14

Hard rocks

Answer 14

On the top layer and undercuts after the soft rock which erodes away

Question 15

Which side of the meander does water flow the slowest?

Answer 15

On the inside

Question 16

Which side of the meander does water flow the fastest?

Answer 16

On the outside

Question 17

What do meanders constantly do?

Answer 17

Changing their positions and produce steep sided cliffs

Question 18

How long do meander take to form?

Answer 18

Takes thousands or million years to form