What color is water?
user
The color of water depends on the angle you look at water, and the exact composition of the water you're looking at. Pure, clear water has no color, as light travels through it. However, viewed at a certain angle, the eye can see light reflecting from the water. In that case, the color would be the color of the object it is reflecting.

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assistant
Why does the water in ice lakes look very deep blue and crystal clear, and what temperature would such water have?
user
The water in ice lakes looks deep blue and crystal clear for two reasons. The reason it is crystal clear is because the ice reduced the glair from the sun. The reason it is deep blue is because of the depth of the water and the angle that you are viewing the water from.
assistant