Chlorofluorocarbons or CFCs are a chemical compound containing carbon, chlorine, and fluorine. Throughout the 20th century, CFCs were mass produced for their popularity in refrigeration and spray cans. In the 1970s, evidence began to show the harmful effects of CFCs on Earth.
Originally created as Great Sand Dunes National Monument on March 17, 1932, Great Sand Dunes National Park and Preserve was established by an act of the United States Congress on September 13, 2004.
Crescentic dunes are the first dune type to form. They occur transverse to the wind where sand is abundant and the wind blows from one main direction (Lancaster, 1996). Crescentic dunes are those relevant to this experiment because the set up will favor the forming of this type.