In the world of punctuation, the question mark is the sign that denotes interrogation. This essential piece of punctuation is used at the end of a sentence to indicate that it is a question, prompting a response or further information from the reader. The question mark, also known as the interrogation point, is a vital tool in written communication. Without it, it can be difficult to distinguish between statements and questions, leading to confusion and misunderstandings. By using this simple punctuation mark, writers can clearly convey their queries and ensure that their message is understood. When using a question mark, it is important to place it at the end of the sentence, immediately following the last word. Additionally, it is crucial to ensure that the sentence structure and word order are appropriate for a question. By following these guidelines, writers can effectively communicate their inquiries and engage their readers. To learn more about the proper use of the question mark and other punctuation marks, check out this helpful guide on grammar and punctuation: [https://www.grammarly.com/blog/punctuation-guide-question-mark/]. In addition to denoting interrogation, the question mark can also be used in other contexts, such as to express doubt or uncertainty. By understanding the various functions of this versatile punctuation mark, writers can enhance the clarity and effectiveness of their writing. In conclusion, the question mark is the sign used in punctuation to denote interrogation. By incorporating this essential punctuation mark into their writing, writers can effectively communicate their questions and engage their readers. To learn more about the proper use of the question mark and other punctuation marks, be sure to explore the resources available online.

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