1.3 River channel processes and landforms

Question 1

What is meant by abrasion?

Answer 1

The wearing away of the bed and bank by the load carried by the river..

Question 2

Abrasion

Answer 2

Wearing away of the bed and bank by the load carried by a river

Question 3

Attrition

Answer 3

The wearing away of the load carried by a river

Question 4

Hydraulic action

Question 5

Corrosion/Solution

Answer 5

removal of chemical ions, especially calcium

Question 6

Load

Answer 6

the heavier and sharper the load, the greater the potential for erosion

Question 7

hydraulic action

Answer 7

this is the sheer power of the waves as they smash against the cliff. Air becomes trapped in the cracks in the rock and causes the rock to break apart

Question 8

PH

Answer 8

rates of solution are increased when the water is more acidic

Question 9

What is meant by attrition?

Answer 9

The wearing away of the load by a river.

Question 10

What is meant by hydraulic action?

Answer 10

The force of air and water on the sides of the rivers and in cracks.

Question 11

What is meant by corrosion or solution?

Answer 11

The removal of chemical ions - especially calcium

Question 12

What is meant by suspended load?

Answer 12

It is how the smallest particles are carried in supension.

Question 13

What is meant by salted load?

Answer 13

The transport of larger particles in a series of ‘hops’

Question 14

What is meant by bed or tracted load?

Answer 14

How peebles are shunted along the bed.

Question 15

What is meant by solution (transport) ?

Answer 15

How the material is carried in areas of calcareous rock.

Question 16

What is meant by capacity?

Answer 16

The largest amount of debris that a stream can carry.

Question 17

What is meant by competence?

Answer 17

The diameter of the largest particle that can be carried.