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.
What is an LRS? A Learning Record Store, or LRS, is a new system thatâs used in conjunction with the Tin Can API to collect, store and retrieve peopleâs learning experiences. By storing the learner experiences it allows the data to be presented in a way that makes it accessible and easy to interpret.