Groundwater
8:43
Karst
20:04
Basics of Groundwater Hydrology by Dr. Garey Fox
14:13
How Wells & Aquifers Actually Work
16:04
Identifying Minerals -- Earth Rocks!
14:11
Inside Africa's Food Forest Mega-Project
6:06
Unconfined Aquifers vs. Confined Aquifers
29:57
2.2 Hydrology and Hydraulics
14:02