Arsenic is present in the environment as a naturally occurring substance or as a result of contamination from human activity. It is found in water, air, food, and soil in organic and inorganic forms.
Latent Semantic Analysis (LSA), sometimes referred to as Latent Semantic Indexing (LSI), is an information modeling and analysis technology. It enables you to organize and examine large collections of information based on meaning (semantics), not just matching the words or items being used.
Deutsche Lufthansa AG (FWB: LHA) (. [ËdÉÊtÊÉ ËlÊfthanzaË]), commonly known as Lufthansa (sometimes also as Lufthansa German Airlines), is a German airline and also the largest airline in Europe, both in terms of overall passengers carried and fleet size when combined with its subsidiaries.n 1987 Lufthansa, together with Air France, Iberia, and Scandinavian Airlines, founded Amadeus, an IT company (also known as a GDS) that would enable travel agencies to sell the founders and other airlines' products from a single system.