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  1. The salt content of the earth's oceans is on the order of about 3.5%, or 35 parts per thousand (35 ppt). The volume of salt is something approaching 14,000,000 cubic kilometers. The number is so large, it is hard to comprehend. Is 1.4 x 1010 kilograms any more comprehensible? Again, those last two numbers are just a ball park upper limit. But gosh, they're big.
  2. There are 11,000,000 cubic miles of salt in the ocean....3.5% of the mass of the entire ocean.
  3. There are about 45 500 000 000 000 000 meters cube of salt in all of the ocean!!
  4. if you lay out all the salt in the ocean it will wrap around the earth one time and be as tall as a 40 story building!

It is assumed that this is based on a volume of ocean water 1,300,000,000 km3

or 310,000,000 cubic miles.

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Wiki User

11y ago
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AnswerBot

6mo ago

Approximately 3.5% of the Earth's oceans are made up of salt, with the most common salt being sodium chloride. This concentration has remained relatively constant over millions of years.

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Maryam A

Lvl 4
2y ago

about 120 million tons

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Q: How much salt is in the earth's oceans?
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How much earth is covered with salt water?

Approximately 70% of earths surface is covered by the oceans.


Where is most of the earths saltwater found?

About 97% of the salt water are found on Earth. These are located in the oceans.


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The oceans cover approximately how much of the earths surface?

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