When a drop of ink is added to water, it gets evenly distributed in sometime. This happens due to the process of ___.

diffusion

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osmosis

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active transport

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respiration

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Solution

The correct option is A
diffusion

Ink diffuses in water because of the random motion of water and ink molecules. One can observe ink move from areas of higher concentration to those of lower concentration, and the rate of this movement is proportional to the diffusion coefficient of the ink in water.

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