The answer is pollution.
Groundwater is water under the surface of the Earth which is widely used as a source of freshwater. Thanks to its position, it is not as much vulnerable to pollution such as surface water. However, some leaking of landfills, septic systems and agricultural chemicals that can reach it deep down under the surface can cause groundwater pollution.
Précipitation évaporation transpiration condensation percolation précipitation runoff.
Force and motion are parts of a branch of science called C) Physics.
pls vote me 4 brainliest :^)
