The answer is - wavelength.
As the wave approaches the shore and it reaches shallow waters it's characteristics start to change. When the wavelength is half of the water depth than the bottom of the wave starts to drag on the ocean floor. As it starts to do this the wave starts to slow down at it bottom as it approaches the beach but the upper part of the wave maintains its initial speed. Because of this the wave becomes longer. Once it reaches the shore it crashes on it and falls apart.
World War 2 occurred in the late 40's, so this is most likely why there is a dip in that age group.
The dutch wanted gold just like the Europeans <span />
Answer:
I would offer cheaper electric cars and solar panels, so that more people would buy them. I would also travel around talking about how pollution affects our country.
Explanation:
