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Do sea has colour
There are a few reasons why the ocean is blue.Ocean is blue because it is mostly water, which is blue in large quantities. When light strikes water, like sunlight, the water filters the light so that red is absorbed and some blue is reflected. Blue also travels further through water than light with longer wavelengths (red, yellow, green) though very little light reaches deeper than 200 meters (656 feet), and no light at all penetrates beyond 2,000 meters (3,280 feet).

Another reason the ocean appears blue is because it reflects the color of the sky. Tiny particles in the ocean act as reflective mirrors so a large part of the color we see depends on what is around the ocean.


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