Waves are non-stop, night and day, year after year, shaping the coast line.
Waves wear away/erode the coast by breaking the rocks around the land this creates less space for the land and gets smaller in time.
Why be use does Superposition. imposissition waves wavees 2 direction opposite interference!
The waves you are referring to are electromagnetic waves. These waves consist of oscillating electric and magnetic fields that propagate through a vacuum or a medium. They include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.