Why Is The Ocean Salty?
8. Undrinkable
All life on Earth needs water in order to survive, while salt is also very important for us, albeit in moderation. Despite the vast volume of water on Earth, however, the vast majority of it is undrinkable, and not only because it tastes terrible. When there is too much salt in our bodies, we will try to expel some to achieve a healthy balance.
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This is achieved by urinating more, and this means that we will use more water to pass the salt than we consumed. Some animals have evolved methods to overcome this problem, but humans must stick to fresh water.
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