How do tides form
The moons gravity pulls on the water this pull make the water bulg towards the moon in between the bulges is low tide
Size of waves depend on
Fetch
Wind strength
Amount of time the wind blows
Direction
Hydraulic action
Force of moving water exerts on the rock dislodging tiny particles through cavitation
Abrasion
Silt and sediments carried by the water scrape or grind agains the river banks or rocks
Attrition
When rock are are carried by water they know against each other becoming rounder and smoother
Solution
Water is a able to dissolve certain minerals found in rock
Wave cut platform
Waves erode the base of the rocks then it collapses cliff eventually retreats inland and a rocky bottom remains called a wave cut platform