A "Question Mark" is a punctuation symbol represented by a curved line and a dot (?). It is used at the end of a sentence to indicate that the sentence is a question. This punctuation helps readers understand that the writer is seeking information or clarification. In addition to its grammatical function, the question mark can also symbolize uncertainty or inquiry in various contexts, such as in literature or art. It encourages dialogue and prompts further exploration of ideas, making it an essential tool in communication.