Why does the process of diffusion take place very, very slowly in solids?
(a) What is meant by 'diffusion'? Give one example of diffusion in gases.
(b) 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?
In a gas, diffusion takes place very slowly.
Explain why, the diffusion of a solid in another solid is a very slow process.
why does evolution occur in bacteria very fast though it is a very slow process in other organisms?