heat erosion
111Ceramic materials — Ceramic Si3N4 bearing parts Ceramic materials are inorganic, non metallic materials and things made from them. They may be crystalline or partly crystalline. They are formed by the action of heat and subsequent cooling.[1] Clay was one of the… …
112Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p …
113Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
114arctic — arctically, adv. /ahrk tik/ or, esp. for 7, /ahr tik/, adj. 1. (often cap.) of, pertaining to, or located at or near the North Pole: the arctic region. 2. coming from the North Pole or the arctic region: an arctic wind. 3. characteristic of the… …
115Deforestation — For other uses, see Deforestation (disambiguation). Jungle burned for agriculture in southern Mexico …
116Death Valley National Park — IUCN Category II (National Park) …
117Archean — The Archean (pronEng|ɑrˈkiːən, also spelled Archaean, formerly called the Archaeozoic (IPA|/ɑrkiəˈzoʊɪk/), also spelled Archeozoic or Archæozoic) is a geologic eon before the Proterozoic and Paleoproterozoic, before 2.5 Ga (billion years ago, or… …
118Grand Canyon of the Yellowstone — The Grand Canyon of the Yellowstone is a large canyon of the Yellowstone River that is located in Yellowstone National Park in the United States. The canyon is up to 900 feet deep (275 m) and a half mile (0.8 km) in width. It is not the canyon… …
119List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
120Tropical Storm Beryl (1988) — Infobox Hurricane Name=Tropical Storm Beryl Type=tropical storm Year=1988 Basin=Atl Image location=Beryl 09 aug 1988 1339Z.jpg Formed=August 8, 1988 Dissipated=August 10, 1988 1 min winds=45 Pressure=1001 Da Inflated=2 Fatalities=1 direct… …
