2006-08-16 03:40:55 · 17 answers · asked by tonybpebbles 2 in Environment
The total water supply of the world is 326 million cubic miles (a cubic mile is an imaginary cube (a square box) measuring one mile on each side). A cubic mile of water equals more than one trillion gallons.
About 3,100 cubic miles of water, mostly in the form of water vapor, is in the atmosphere at any one time. If it all fell as precipitation at once, the Earth would be covered with only about 1 inch of water.
The 48 contiguous United States receives a total volume of about 4 cubic miles of precipitation each day.
Each day, 280 cubic miles of water evaporate or transpire into the atmosphere.
If all of the world's water was poured on the United States, it would cover the land to a depth of 90 miles.
Of the freshwater on Earth, much more is stored in the ground than is available in lakes and rivers. More than 2,000,000 cubic miles of fresh water is stored in the Earth, most within one-half mile of the surface. Contrast that with the 60,000 cubic miles of water stored as fresh water in lakes, inland seas, and rivers. But, if you really want to find fresh water, the most is stored in the 7,000,000 cubic miles of water found in glaciers and icecaps, mainly in the polar regions and in Greenland.
2006-08-16 03:51:55 · answer #1 · answered by Lee 4 · 2⤊ 0⤋
Just over 2/3 of planet earth is covered in water! And yet we have a drought, a hose pipe ban and many people in 3rd world countries have to walk miles to get some! I dont get it!
2006-08-16 10:53:37 · answer #2 · answered by Totty D 3 · 0⤊ 0⤋
An abundant substance on Earth (the UN Environment Program estimates there are 1400 million cubic kilometers [2]), water exists in many forms.
If you're curious, can tell you two ways in which to die from an overdose of water.
2006-08-16 10:44:17 · answer #3 · answered by Corn_Flake 6 · 0⤊ 0⤋
Only 2% of the VOLUME of the earth is water!
2006-08-16 10:54:54 · answer #4 · answered by Al 2 · 0⤊ 0⤋
the earth is covered with 70% of water.
2006-08-16 10:44:30 · answer #5 · answered by Jenny P 2 · 0⤊ 0⤋
about 2 thirds of the earths surface is covered but i dont know by how much
2006-08-16 10:44:36 · answer #6 · answered by Gem 3 · 0⤊ 0⤋
75% of the earth?
2006-08-16 10:43:58 · answer #7 · answered by scarlet_bat 4 · 0⤊ 0⤋
1.37 Ã 109 km3 in the oceans... more info at the website below.
2006-08-16 10:47:06 · answer #8 · answered by Anonymous · 0⤊ 0⤋
1/3 is land.
so:
3/4 is WATER.
2006-08-16 10:47:10 · answer #9 · answered by ♫♫♫ EL Dindo 3 · 0⤊ 0⤋
70%
2006-08-16 10:46:07 · answer #10 · answered by dEdZ 2 · 0⤊ 0⤋