The water molecule is a chemical compound and contains 2 hydrogen atoms and one oxygen atom. Water can be three different forms. Liquid, solid, and gas. 70% of the world is covered by water such the oceans, rivers, lakes. Sea creature such as sharks and stingray use their gills to extract oxygen from the water to breath. As humans use water to obtain oxygen and to hydrate themselves but it water is use to digest food, get rid of waste, and water can find on our skin so, when we do active things like go on a run or go to the gym we sweat. When we sweat we regulate body so we won't overheat fast. Some people are diagnosed with hydrohidrosis which cause on the sweat less then usual. But, in in severe cause on may not not be able to sweat at all.

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