Water vapor is released through small tubes back into the air
because of differences in air pressure. Sublimation Sublimation is
when water goes directly from a solid to a gas. There is no liquid
phase. For example, snow and ice turning directly into water vapor
without melting first. Mt. Everest, losing some snowcover due to a
common windstorm. Snow is also constantly lost, invisibly, due to
sublimation. Credit: Benjamin D. Oppenheimer Infiltration
Infiltration is precipitation that soaks into the ground. Surface
water becoming groundwater, Russell Cave, Alabama Credit: Alan
CresslerAlan Cressler Percolation Percolation is the filtering of
water as it soaks into the water table. Stays as either run-off or
sublimation
