Why is ocean water not usable for drinking and crop irrigation?

Answer 1

The first guy does not know what she/he is talking about! When we need water our cells get big, then when we drink water its makes them small again.But, when you drink salt water it makes them bigger does to the salt.Making them bigger and thristier so you drink more making it BIGGER.But, if you drink fresh water it returns you to normal!(^_^)

- I don't know what "the first guy" said, but if it is the opposite of this, then he was right. Ocean water is very high in sodium. The role of your cells(as far as water) is to keep the concentration of solute in the cells the same as outside. In this case, salt is the solute. If you ingest too much salt, your cells will let out water to even out the concentration. This makes them SHRINK. When you drink too much fresh water, the concentration of solute inside your cells is higher, causing them to draw in water. This could eventually cause them to lyse, or burst, from having too much water in them.

Answer 2

You can not drink sea water 1) because people and creatures and all sort of dirty things have been in it 2) because the sea is salty, which will actually make you more thirsty, rather than less

Answer 3

We CAN, and in fact for thousands of years people DID.

Of course, for even more thousands of years people died of cholera and dysentery and all manner of diseases that could have been prevented by purifying the water. But it's POSSIBLE.

Answer 4

Ocean water is very corrosive, so the equipment needed to purify it would be too expensive, and need to be replaced often.

Answer 5

b'coz it's salty........ and may be quite dirty and muddy

sea creatures also do their business in there

Answer 6

Seawater is not used for drinking water because it is impure. There are high concentrates of salt and other unknown substances in the sea.