2007-09-12 13:01:56 · 13 answers · asked by donmarie b 1 in Science & Mathematics ➔ Astronomy & Space
Because water is essential to life. If water was not present, it would not be living.
2007-09-12 13:04:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This should be under Biology. Anyways, the reason is that the breathing of Oxygen by animals and Carbon Dioxide as plants, produce H2O as a waste product. Also, water acts as the transporting mechanism for minerals and other things.
2007-09-12 13:06:37 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Think about your question, how can anything exist without water!!! Anything would be completely DRY/dehydrated, water is the FIRST thing any probe looks for on distant planets, water is the one thing no living organism can live without.
2007-09-12 13:07:51 · answer #3 · answered by canuck1950 6 · 0⤊ 0⤋
Water is everywhere in our body. We humans are about half water. Even our bones contain water. It's in the cells, pretty much most of blood is water, plasma, muscle cells, in chemical bonds with other molecules, you name it.
http://en.wikipedia.org/wiki/Body_water
Also plants are mostly water.
We wouldn't be here without.
2007-09-12 14:25:34 · answer #4 · answered by Batfish 4 · 0⤊ 0⤋
The cell is mainly composed of water.
2007-09-12 13:05:21 · answer #5 · answered by Ask me 3 · 0⤊ 0⤋
and almost every living thing the blood is the same salinity as sea water.
2007-09-12 13:08:11 · answer #6 · answered by redd headd 7 · 0⤊ 0⤋
its complicated chemical formula but hydrogen in the air mixes with oxygen to make h2o
2007-09-12 13:04:30 · answer #7 · answered by Anonymous · 0⤊ 0⤋
It is essential for all living forms.
2007-09-16 04:44:30 · answer #8 · answered by johnandeileen2000 7 · 0⤊ 0⤋
I would think it is chemically necessary to convert fuel to energy. But really, I'm not sure.
2007-09-12 13:05:24 · answer #9 · answered by Sage 2 · 1⤊ 0⤋
It just is? Its essential the chemical compostion
2007-09-12 13:04:29 · answer #10 · answered by Anonymous · 0⤊ 0⤋