Exploratour - The Surface of the Earth
Ocean Levels
Did you know that the sea is not flat? Of course if you are on a boat, then the sea does not seem to be very flat. Waves rock the boat from side to side. But this is not what we mean when we say that the sea is not flat.
The Pacific Ocean is higher on the western edge near Japan and Australia, than on the eastern edge near the United States. This seems hard to imagine, but it is true. The high spots of the ocean are shown in red in this picture.