wave cut notch and platform

Question 1

when a wave erodes a cliff where is the erosion mostly concentrated around? and what are the main erosional processes taking place to create a wave cut notch?

Answer 1

high tide line

hydraulic action and corrasion

Question 2

explain the sequence of the formation of a wave cut platform

Answer 2

wave erodes cliff, concentrated around high tide line
hydraulic action and corrasion create the wave cut notch
notch gets deeper
subaerial weathering weakens the cliff from the top
cliff face becomes unstable and falls under its own weight through mass movement
leaving a platform
this continues over time leading to a wave cut platform
which is normally exposed at high-tide