Why is there more land on one hemisphere of Earth than on the other?
Scientists now believe that at one point, several billion years
ago, there was only one continent, which we call Pangea. Because of
plate tectonics, which is the movement of the plates making up the
crust of the Earth, that super continent has broken up, and parts
of it are drifting erratically around the Earth. It is purely
chance that so much continental crust is concentrated in one