What is the purpose of the in situ aeration (Air Sparging) method? a) To physically remove contaminants from the saturated zone of the soil. b) T...

What is the purpose of the in situ aeration (Air Sparging) method?


a) To physically remove contaminants from the saturated zone of the soil.
b) To increase the mobility of contaminants in the soil.
c) To desorb contaminants from the soil structure using injected air.
d) To heat the soil to volatilize organic compounds and remove them by pumping.