The different kinds of waves on the surface and inside the sea are caused by wind blowing over the sea by underwater earthquakes and by the effects of the sun and the moon.
Waves, which are formed by the wind, blow over the sea surface, making the waves large or small according to its force. Individual drops of water form a closed circular movement in a vertical direction, thereby forming waves.
The wave movement spreads, therefore, the waves follow one after the another, as far as we can see.
Below Waves info from Wikipedia (Read More):-
A wave is a disturbance that propagates through space and time, usually with transference of energy. A mechanical wave is a wave that propagates or travels through a medium due to the restoring forces it produces upon deformation. There also exist waves capable of traveling through a vacuum, including electromagnetic radiation and probably[1] gravitational radiation. Waves travel and transfer energy from one point to another, often with no permanent displacement of the particles of the medium (that is, with little or no associated mass transport); they consist instead of oscillations or vibrations around almost fixed locations.
http://en.wikipedia.org/wiki/Wave
