I think the percentage of the water on earth is 97%.
71 % or thereabouts.
70%-75% no more no less
Just over 2/3, nearly 70 %
71 pecent of the earth
About seventy five percent of the earth has ocean water.
About 70% of the Earth's surface
Approximately, 70 percent of the Earth's surface is covered by oceans and seas.
70 percent
About 70% of the surface is covered by water.
Water covers 71% of the Earth's surface
20 percent
more than 80 percent of the earth's surface is volcanic in origin.
The Pacific Ocean covers about 28% of the global surface. It is larger than the total land area of the world.
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.
Because it is under the ocean.