AS River Processes

What is erosion?

• River deposits rocks and soils as it flows

• River carries rocks and soils as it flows

• River removes rocks and soils as it flows

In which part of the river does water flow the fastest?

• Upper course

• Middle course

• Lower course

Attrition occurs when...

• particles of load collide and knock pieces off each other

• smaller material rubs against the bed and banks of the river

• acid in the water dissolves particles of rock from the bed and banks of the river

• the sheer force of the water and air forcing itself into the soil

What are the three processes that occur as a river flows from its source to the mouth?

• erosion, transportation and abrasion

• erosion, transportation and deposition

• erosion, transportation and attrition

• erosion, transportation and corrosion

What happens when smaller material rubs against the bed and banks of the river?

• attrition

• corrosion

• abrasion

• hydraulic action

The sheer force of water and air forcing itself into the soil and moving away parts of the land and banks of the river is called....

• hydraulic action

• corrosion

• abrasion

• attrition

Which one of these processes is the rolling of stones along the river bed?

• solution

• saltation

• suspension

• traction

Which one of these processes is the movement of particles 'leap frogging' along the river bed?

• traction

• suspension

• saltation

• solution

Which one of these river processes is the movement of material that is dissolved in water?

• traction

• suspension

• saltation

• solution

Which one of these processes is the movement of material that is carried within the water flow?

• traction

• suspension

• saltation

• solution