At the equator, the sun shine heats the air and causes it to rise. At the north and south pole
there is less direct sun to warm the air, so this
air (blank)
1. rinses
2. stinks
3. rises
4. sinks

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.