Preventing pollution is the best method to protect groundwater resources. Groundwater is the primary source of freshwater for people.
Groundwater is the primary source of freshwater for people. Isotope techniques are used to determine the source and replenishment rates of groundwater by using stable and radioisotopes that are naturally present in groundwater. Groundwater is the source of 30% of the world's available freshwater. Technically speaking, groundwater can also refer to frozen soil moisture, immobilized water in bedrock with extremely poor porosity, and deep thermal or oil formation water. The typical image of groundwater is that of liquid flowing through shallow aquifers. Groundwater is thought to facilitate fault movement. Water is undoubtedly present in the Earth's subsurface; however, it may occasionally mix with other liquids.
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