Why does groundwater discharge to earth's surface? ?

Earth's surface is unpredictable, and porousness diminishes with profundity inside Earth. The hydrologic cycle depicts the ceaseless development of water above, on, and underneath the surface of the Earth. The water on the Earth's surface- - surface water- - happens as streams, lakes, and wetlands, and in addition narrows and seas. Surface water likewise incorporates the strong types of water- - snow and ice. The water underneath the surface of the Earth fundamentally is groundwater, however, it likewise incorporates soil water.