2007-04-16 04:39:49 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
If you need a result in kilograms, it is a mass, not a weight. I found a reference that says that the Earth is only 0.07% water by mass. Since the Earth has a mass of 5.97 x 10^24 kg, the water mass would bo 0.0007*5.97 x 10^24 kg = 4.18 x 10^21 kg.
Note that you cannot just multiply the volume of the ocean by the standard density of water, 1 g/cm^3, because water becomes considerably more dense at great depths.
2007-04-16 04:47:37 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
The world ocean is roughly a billion cubic kilometers, and a cubic kilometer is 1E12 cubic decimeters, so doing the obvious multiplication we get 1E21 kilograms. You can find a more exact figure in:
2007-04-16 11:46:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
About 1.38E21 kilograms.
What is a kiliogram?
2007-04-16 16:41:06 · answer #3 · answered by morningfoxnorth 6 · 0⤊ 0⤋