process of weathering
41Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
42building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
43industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
44Carbon sequestration — is the capture of carbon dioxide (CO2) and may refer specifically to: The process of removing carbon from the atmosphere and depositing it in a reservoir. [1] When carried out deliberately, this may also be referred to as carbon dioxide removal,… …
45243 Ida — Galileo image of 243 Ida. The tiny dot to the right is its moon, Dactyl. Discovery[1] and designation …
46continental landform — ▪ geology Introduction any conspicuous topographic feature on the largest land areas of the Earth. Familiar examples are mountains (including volcanic (volcanism) cones), plateaus, and valleys. (The term landform also can be applied to… …
47Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …
48Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
49cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… …
50planation surface — ▪ geology Introduction any low relief plain cutting across varied rocks and structures. Among the most common landscapes on Earth, planation surfaces include pediments, pediplains, etchplains, and peneplains. There has been much scientific… …
