The theory of plate tectonics.
Continents cover about 29% of the Earth's surface area. The rest of the surface is predominantly ocean.
the earths plates shifted....
In great detail
Just under 30%
Approximately 30% of the Earth's surface is covered by land, the remaining 70% of the surface is covered by water.
The continents have moved, Volcanoes and mountains have made hige changes in the earths suface too.
One third is surface and the rest is the sea.
mostly water. There are some continents on there too though i believe.
The process by which continents move slowly across the Earth's surface is called plate tectonics. This movement is driven by the continuous shifting of large geological plates that make up the Earth's outer shell. The movement of these plates can result in phenomena like earthquakes, volcanic eruptions, and the formation of mountain ranges.
the earth can be organized into 4 oceans, 7 seas, and 7 continents
The world is about 30% land and about 70% water
crust