Under what condition will diffusion take place most rapidly?

From my opinion it would be:

Temperature: Molecules, like practically everything else you can think of, tend to diffuse faster as temperature increases, as this increases the random collision between molecules and increases the rate of diffusion.

Explanation:

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation: