Answer: It is the largest available source of freshwater.Groundwater is the reservoir of water, that accumulates in the underground zone of the soil profile. The water seeps into the underground by tiny pores present in the aggregates of the soil. The water from sources like lakes, river, ponds, rainfall and irrigation of agricultural land absorbed by the soil in the form of groundwater. It is the largest available source of freshwater.
Groundwater is the largest available source of freshwater, followed by lakes, rivers, reservoirs and wetlands. Groundwater refers to all subsurface water.