Why Do We Need Water to Survive?

Answer

We need water to survive because we depend on it to keep our bodies hydrated. Our bodies are made up of between 50% to 70% of water and amazingly our brains comprise over 80% water. It is therefore obvious that we need to take water to keep our bodies functioning.
Q&A Related to "Why Do We Need Water to Survive"
Good question! There are a lot of answers. I will go with an evolution/philosophy based answer. Since our planet is mostly water, because life began in water (depending on you beliefs
http://wiki.answers.com/Q/Why+do+animals+need+wate...
Water travels through the roots and stems up to its leaves of flowering plants carrying nutrients from the soil. Water, soil nutrients, energy absorbed from the sun, carbon dioxide
http://www.ehow.com/info_7980962_do-flowers-need-w...
Two thirds of human body is water. Water is needed for circulation
http://www.chacha.com/question/why-do-we-have-to-d...
They store food in there body because they are used to be hungry for many day and adopt thigs from there environment
http://wiki.answers.com/Q/Why_do_mammals_in_desert...
1 Additional Answer
We need water to survive, to replace the water we lose through sweat and urination. The majority of our bodies are made up of water. If we didn't replace our fluids as needed, our bodies wouldn't be able to function. You can find more information here: http://www.rsc.org/Chemsoc/Chembytes/HotTopics/DrinkingWater/whywater.asp
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