River Processes Quiz

What is erosion?

• The process of material being transported downstream

• The process of material being removed from the riverbed and banks

• The process of material being dissolved in the river

• The process of material being added to the riverbed and banks

What does ATTRITION mean?

• Rocks being dissolved by the river

• Rocks carried by the river colliding and breaking into smaller pieces

• Material being loosened and carried away by the river

• The force of the river against the banks

Which type of erosion involves rocks scraping along the bed and banks of the river?

• Hydraulic action

• Solution

• Abrasion

• Attrition

What is hydraulic action?

• Soluble particles being dissolved by the river

• Large rocks being rolled along the riverbed

• Smaller material being carried along in suspension

• The force of the river against the banks causing erosion

What is the term for very small material that is dissolved and can be transported in a river?

• Saltation

• Solution

• Traction

• Suspension

Which transportation method involves rocks and pebbles bouncing along the riverbed?

• Traction

• Suspension

• Saltation

• Solution

When does deposition typically occur in a river?

• When large rocks break into smaller pieces

• When the river flows into the sea

• When the river energy is high

• When the river energy is low

What happens to larger, heavier material during deposition?

• It continues to be transported

• It is deposited first

• It is carried further downstream

• It is dissolved in the river

Which type of erosion involves soluble particles being dissolved by the river?

• Attrition

• Abrasion

• Solution

• Hydraulic action

What is traction in the context of river transportation?

• Material being dissolved and transported

• Smaller material being continuously carried along

• Large rocks rolled along the riverbed at high energy

• Material bouncing along the riverbed