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.
Lebuhraya Shah Alam â KESAS. Info: KESAS or Lebuh Raya Shah Alam (LSA) is a highway spanning a total of 34.5 kilometres. For west-bound travellers, it begins at Sri Petaling and ends in Klang, near Westports in Pulau Indah. There are 14 interchanges (persimpangan) and four toll plazas along the KESAS Expressway (Shah Alam Highway).