Question

why does the colour of water change​

Answer 1

Answer:

organic matter NOM is present in most surface water where it appears as brownish-yellow colour. During the last few decades this colour has increased in the SubArcitc Zone

Answer 2

The color of water changes​ due to the Natural Organic Matter.

We were taught growing up that water is blue, but some rivers are black, brown, emerald blue, green, or even blue-green. This says that the color of the water changes.

We know, natural light is actually made up of a number of different colors associated with different wavelengths within the light spectrum.

The factors such as minerals, soil runoff and sediment, and even algae can cause water to vary from its natural color of blue

Also, the most common cause for water to change color is minerals. When a rock is weathered down over time, the minerals from the rock are dissolved and small pieces are released into the water causing different colors.

The common minerals like Iron, manganese, and calcium carbonate from limestone can cause water to range in color from red and orange to green and blue.

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