If you have a mold or mildew problem in your home you will want to use the best chemicals to get rid of it. Mold can destroy the structure of your home and affect your family's health adversely. There are different chemicals you can use depending on where the mold is growing.
Normally the transition from a spoken to an extinct language occurs when a language undergoes language death while being directly replaced by a different one. For example, some Native American languages were replaced by English, French, Portuguese, Spanish, or Dutch as a result of colonization.
In practice, extinction means that, for one reason or another, a language is overshadowed and gradually and imperceptibly superseded by another. The change appears dramatic only in retrospect. The peoples that have spoken or speak one of the Semitic languages as their main language are known as Semitic peoples. Divisions between the branches of the group have been subject to much controversy, and the presentation below is much more straightforward than the present state of research would warrant.