Water that fills spaces in porous rocks, sediments and soil, below the level of the water table.
Water that fills spaces in porous rocks, sediments and soil below the level of the water table. Groundwater is different to soil moisture, which is moisture above the water table. Layers of waterlogged rock or sediment are called aquifers, and provide around a fifth of the world's fresh water.
Groundwater is different to soil moisture, which is moisture above the water table. Layers of waterlogged rock or sediment are called aquifers, and provide around a fifth of the world's fresh water.