The water cycle is an uninterrupted cycle where
water vaporizes, journeys into the air and becomes part of a rain cloud, drops
down to ground as rainfall or snow and then vaporizes another time. This recurs
all over again in a continuous cycle.
Rainfall, hail and snowfall produce an overflow
that moves over the exterior of earth and assists to cover ponds and streams.
It also infiltrates or descends sliding through holes in the soil to refill
permeable rocks under the earth.