Complete the blank space from the word box Diffusion low scent high You can smell deodorant like axe in the...

1. Complete the blank space from the word box
Diffusion low scent high
You can smell deodorant like axe in the classroom after someone sprays it in the hallway because the ______ moves from ______ concentration in the hallway to ______ concentration in the classroom. This is an example of ______.
2. Arrange in an increasing order of the rate of diffusion of solids, liquids and gases.