geo gcse

in open sea,wind pulls on water surface causing water to rise

inside wave,water rotates and returns to starting point

when wave reaches shallows it distorts until it breaks

the energy and water rotation cause wasve to move onwards

waves surge up beach SWASH

wave moves down beach SWASH

destructive wave.Steep beach

strong backwash,weak swash

high compared to length

form frequently

waves close to each other