Why human need water to live?

Question

question from alien

Answer 1

Your human body is mostly water.  If you dont keep fresh water coming in to your body you will dry up and die.

Answer 2

It is because our body is composed of 3/4 of water so, without water,we would be rupture and die .=]

Answer 3

i think for many bio-chemical reactions in our body.

Answer 4

Your human body is mostly water. If you dont keep fresh water coming in to your body you will dry up and die.

Answer 5

yes. water does a major role of flushing out your system of toxins. but dont drink to much water. water can also kill you. flushes out your electrolytes.

Answer 6

its a vary useful as an enabler for a lot of different chemical reactions, that not only why most of life needs it but also why water is thought to be a prerequisite for life because of the chemical reactions it enables

Answer 7

YOU CAN SURVIVE WID OUT FOOD BUT YOU CANNNOT SURVIVE WITOOUT WATER

Answer 8

Water is needed for hydrolysis reaction taking place in the body. for example sucrose is broken down into fructose and glucose. Also water is needed as the body requires between one and seven liters of water per day to avoid dehydration; the precise amount depends on the level of activity, temperature, humidity, and other factors. Most of this is ingested through foods or beverages other than drinking straight water.