Answer:
Ground water
Step-by-step explanation:
The ground water reservoir is found underground in cracks and spaces in the soil, sand and rock.
Ground water is a very important portion of the water cycle where water is stored in an aquifer.
Aquifers are porous and permeable formations that stores ground water within them.
In this manner, ground water system is recharged by infiltration of water from the surface. Water percolates and collects inside an aquifer in this manner.