Answer:

Explanation:
Let x be the distance to the shore
From trigonometry properties:

There is no change in ocean water temperature when it is from the ocean surface to a depth of 1 km.
Explanation:
This happens because the gas inside tend to expand because its temperature gets higher.
This is why the balloon that is put in a freezer for too long tend to gets smaller, because the gas temperature that is inside the balloon decreases.
(you can try it at home)
It is related to the temperature of the gas.
The anwser is a even bigger wave is coming