How to erode coasts

1. Hydraulic Action : Is the force of water hitting the cliff and squeezing air into the cracks in a rock .

1. Hydraulic action

Hydraulic action

2. Abrasion : Is the force of the bits of rock carried in the water blasting into the cliff .

2. Abrasion

Abration

3. Attrition : Is the process of rocks hitting each other and breaking into smaller rocks .

3. Attrition

Attrition

4. Corrosion : Is a chemical reaction between the sea water and the minerals in the rock .

4. Corrosion

Corrosion