70%.
The Dead Sea, with an average of about 1,312 ft. below sea level.
They both can change the size of Earths Surface
Well I'm not to sure about that, but 70% of the earth is water!And only 3% of all the water is fresh
it will over flood the earths surface with melt water of the ice berg and detroy land under sea level
Earths core
The Dead Sea in Jordan.
Earth's core
I'm afraid I don't understand what you mean by the "Deep sea". Do you mean how much of the earth's surface does the deepest section of the sea cover? I know that oceans and seas cover 75% of the Earth's surface, approximately.
If you are talking about land above sea , then it would be called run off, because when precipitation falls , whether it is rain or snow , at some point it usually makes its way from the land to the sea via flowing over the surface of the earth.
Elevation
Moon
Yes, surface sea water is evaporated.