Digestion begins in the mouth, where chemical and mechanical digestion occurs. Saliva or spit, produced by the salivary glands (located under the tongue and near the lower jaw), is released into the mouth. Saliva begins to break down the food, moistening it and making it easier to swallow.
By Elizabeth Schofield Submitted On December 23, 2012. The purpose of a newsletter is to provide information pertaining to a product or service to a targeted audience. Newsletters, done effectively, can also create a company's credibility and build an organization's identity.
Quick Answer. The main purposes of newspapers are to inform, interpret and entertain. Newspapers help readers become informed by providing them with facts, statistics and opinion columns. Most newspapers feature stories that represent the opinion of the newspaper management and that of the editors.