accumulation of snow
121Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
122Lassen Volcanic National Park — IUCN Category II (National Park) …
123atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… …
124Dirt cone — Dirt cones near Gorsajökull, Sweden A dirt cone is a feature of a glacier or snow patch, in which dirt or debris has fallen onto ice, firn or snow. This debris forms a coating which, when thick enough, insulates the underlying ice or snow.… …
125Réchauffement climatique — Cet article concerne le réchauffement climatique. Pour les variations cycliques de l histoire du climat, voir changement climatique. Différence de température globale moyenne de …
126United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
127Glacier — Pour les articles homonymes, voir Glacier (homonymie). Le glacier d Aletsch (Suisse), le plus grand glacier des Alpes …
128Glacier de vallée — Glacier Pour les articles homonymes, voir Glacier (homonymie). Glacier Briksdal, Norvège, 2 juillet 2006 Un glacier …
