How does the gas propellant move when an aerosol can is used?
from a region of low pressure to a region of equally low pressure
from a region of high pressure to a region of lower pressure
from a region of low pressure to a region of higher pressure
from a region of high pressure to a region of equally high pressure
from a region of low pressure to a region of equally low pressure
from a region of high pressure to a region of lower pressure
from a region of low pressure to a region of higher pressure
from a region of high pressure to a region of equally high pressure