This is the lecture 4 of Hydrogeology Lecture Series. This lecture contains Aquifer, properties of aquifer, Storage property of aquifer: Porosity and Effective porosity. There are some Numerical Answer type question given in this lecture. Comment the solution in the comment section. For more detailed lecture and any query, kindly contact [email protected] or 8840158796. #nature #education #educationalvideo #geology #india #geologyseeker #geologystudent #hydrology #hydrogeology #groundwater #groundwater_survey #india