A vital part of life on earth is the continuous hydrologic cycle; Water cycles from the atmosphere to and through the earth and back the atmosphere.
Once water has entered the soil, it will spread out in all directions. The water either gets stored for reusing by plants for example or it drains downward.
Because of soil water air and nutriens can get in the ground which is very imiportant.

Quiz
What happens when water reenters the surface water?
A Infiltration
B Ground water is formed
C Evaporation
Links
EDX
soil water cycle
by Dario & Justin