Which term describes water stored in the spaces of soil and rock layers?

Which term describes water stored in the spaces of soil and rock layers?

• A. Groundwater
• B. Precipitation
• C. Runoff
• D. Ponds and lakes

Answer: (A)

Groundwater is water that fills the spaces between soil grains and within cracks in rock beneath the surface. When precipitation infiltrates the ground, some of it moves downward and becomes stored in these pore spaces and fractures, forming underground layers called aquifers with a water table marking the top of the saturated zone. This stored water can slowly move through the rock and soil and is a major source of fresh water for wells and springs. In contrast, precipitation is the water that falls from the atmosphere; runoff is water that flows over the surface rather than soaking in; ponds and lakes are surface water bodies. So the term that describes water stored in the spaces of soil and rock layers is groundwater.

Groundwater is water that fills the spaces between soil grains and within cracks in rock beneath the surface. When precipitation infiltrates the ground, some of it moves downward and becomes stored in these pore spaces and fractures, forming underground layers called aquifers with a water table marking the top of the saturated zone. This stored water can slowly move through the rock and soil and is a major source of fresh water for wells and springs. In contrast, precipitation is the water that falls from the atmosphere; runoff is water that flows over the surface rather than soaking in; ponds and lakes are surface water bodies. So the term that describes water stored in the spaces of soil and rock layers is groundwater.