Geography_Theme 2_Rivers_3

What are the four types of erosion in rivers?

• Hydraulic action, Abrasion, Attrition, Corrosion

• Hydraulic action, Abrasion, Deposition, Solution

• Attrition, Corrosion, Deposition, Suspension

• Traction, Saltation, Suspension, Solution

Define the term hydraulic action.

• The process where material carried by the river grinds the bed and banks

• The erosion process where the force of water wears away the bed and banks of a river

• The transport of large particles along the river bed

• The process where material bounces along the river bed

What is abrasion?

• The erosion process where the force of water wears away the bed and banks of a river

• The erosion process where material carried by the river grinds the bed and banks

• The transport of large particles along the river bed

• The process where material dissolves in the water

True or False? Lateral erosion is dominant in the upper course of rivers.

• True

• False

What are the four processes of transportation in rivers?

• Traction, Saltation, Suspension, Solution

• Hydraulic action, Abrasion, Attrition, Corrosion

• Erosion, Deposition, Suspension, Solution

• Traction, Abrasion, Attrition, Solution

Define the term traction.

• The transport of large particles along the river bed

• The process where material bounces along the river bed

• The erosion process where the force of water wears away the bed and banks of a river

• The process where material dissolves in the water

Which type of transportation involves material bouncing along the river bed?

• Traction

• Saltation

• Suspension

• Solution

Which of the following is not a type of erosion in rivers?

• Hydraulic action

• Abrasion

• Deposition

• Attrition

Which process involves the dissolving of soluble materials in the water?

• Traction

• Saltation

• Suspension

• Solution

In which course of a river is vertical erosion most dominant?

• Upper course

• Middle course

• Lower course

• Delta