the inner regions of antarctica gets only about 2 inches of precipitation per year. the winds here blow up snow from the land and put it into the atmosphere, which is part of the water cycle. and the sun helps out, too, causing sublimation to occur, which causes snow to evaporate directly into water vapor gas.
Mass= is how big something is. Weight= is how heavy something is. They are different things because weight is talking about heavy... not how big it is.
