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.
In 2004, the Federal Aviation Administration (FAA) allowed everyone the freedom to fly for fun with a new category of aircraft which are are simple to fly, plus lower costs to own and operate. These new Light-Sport Aircraft (LSA) can carry two people and be flown by a pilot with a new and easier to obtain sport pilot license.