Infiltration is the process that helps to add water to the Earth's
groundwater supply. What happens during infiltration?
A. The water is heated by the sun and floats into the air.
B. The water is drawn into the ground by the force of gravity.
C. The water changes from a gas to a liquid.
D. The water moves along the land downhill, due to the force of gravity, to a larger body
of water like a river, lake, or ocean.