Erosional Processes Shaping Coastlines and Rivers

The video tutorial explains four types of erosional processes: abrasion, attrition, hydraulic action, and solution. Abrasion involves small particles in waves hitting cliffs, similar to sandblasting. Attrition describes rocks colliding and wearing down. Hydraulic action is the force of waves eroding cliffs and compressing air in cracks. Solution involves the dissolution of rocks due to water's mild acidity. These processes occur along coastlines and in rivers, with a focus on coastal cliffs in this video.

What is the primary focus of erosional processes discussed in the video?

• Erosion in deserts

• Erosion in rivers

• Erosion in mountains

• Erosion along coastlines

Which erosional process involves tiny particles in waves hitting the base of a cliff?

• Attrition

• Abrasion

• Hydraulic action

• Solution

What causes a wave cut notch to appear in the abrasion process?

• Air compression in cracks

• Dissolving of rocks

• Large rocks hitting the cliff

• Tiny particles in waves colliding with the cliff

Which erosional process is similar to sandblasting?

• Abrasion

• Hydraulic action

• Solution

• Attrition

What is the result of the attrition process?

• Rocks remain unchanged

• Rocks dissolve completely

• Rocks become smaller and rounder

• Rocks become larger

How does hydraulic action contribute to erosion?

• By dissolving rocks

• By freezing water in cracks

• By compressing air in cracks

• By heating the rocks

What is the effect of air compression in hydraulic action?

• It has no effect

• It cools the rock

• It expands cracks and weakens the rock

• It strengthens the rock

Which process involves the dissolving of rock due to water's properties?

• Abrasion

• Attrition

• Hydraulic action

• Solution