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.
Languages like Dari are transferring from a state of language maintenance, in which a language is being sustained in the face of pressure from a dominant culture, to language death, a state in which the language is no longer spoken.