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Name: wallyb, Gower Middle School
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1999


Question:
We have several questions which relate to oceans. 1) Why can't humans drink salt water? 2) Why are oceans made of salt water? 3) Do all oceans contain the same level of salt water?


Replies:
You can drink sea water but it doesn't alleviate your thirst; in fact it makes you more thirsty. No, all oceans and seas do not contain the same level of salt: inland seas are often saltier, for example the Great Salt Lake in Utah; the Mediterranean is saltier than the Atlantic.

--- Jade


Even if you restrict yourself to oceans like Pacific, atlantic, Antarctic, Indian, etc, there are variations in saltiness (salinity). This depends on a lot of variables but the most obvious is temperature. Your question WHY are oceans are made of salt water is a very good one.....I'm not sure I have a good answer for that. salt is Most of the "saltiness" in salt water is due to soduium chloride (NaCl), which happens to (a) be very common in the earth's upper crust , (2) and (2) is very soluble (it dissolves easily in water). Why there's so much NaCl, well, I don't know.

-dr topper


The salt in the oceans is derived from two sources. The major source of salt is river runoff. Salt is dissolved from the Earth's crust into water as it flows to the oceans. This accounts for sodium chloride (which is the salt we eat). But sodium chloride is not the only salt to be found in the ocean. Some of the other salts found in the ocean are the products of outgassing during volcanic eruptions.

grant l



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