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Water is actually naturally blue.

Water is actually naturally blue. Pure water has a slight blue tint the becomes increasingly viewable as thickness and volume of water increases. The color is an intrinsic property that, like with everything, comes from selective scattering and absorption of normal white light.  Substances in water can sometimes give it a differently colored appearance. For example, it’s common for certain beaches to have more green or turquoise water due to what’s in the water. Lakes and oceans appear more blue than pools, though, and this is for a few reasons....

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Published By: OMGFacts - Wednesday, 1 August, 2012