Well, 71% of Earth is covered by water, which is more than half, so, yes, most of Earth's surface is under water.
by the sun
Epicenter
earths surface
In the Sea/Oceans, Lakes, Rivers, Ponds, Puddles, Streams etc.
Air pressure Gradient
Most of the earths surface is covered with water. There is land under that water though, below the surface.
Salt Water
During the devonian time period most of land was under water.
Because most of the water is salt water
water
This source is ocean waters.
Most of it is water, the rest is rock.
Water is evaporated from oceans, seas, lakes, rivers.
It is running water
The energy from Sun is the most important.
It is summer when the sun is heating earths surface the most.
Water which moves over the earths surface after having precipitated (rain, snow, etc) is known as runoff. Most rivers get the majority of their water from precipitation runoff.