50. (a) What is meant by diffusion' ? Give one example of diffusion in gases.(2) Why do gases diffuse very fast ?(c) Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
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Carbon dioxide and oxygen are the two gases in air which dissolves in water by diffusion. Carbon dioxide is important for aquatic plants for the photosynthesis. Oxygen is used by aquatic animals for breathing
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