no
A period isn't required when you use a question mark. In other words, only one should be used.
No. it's not necessary to put a period after a question mark.
No, a question mark alone is sufficient.
No, a period is not used after the reference when an in-text citation ends with a question mark. The question mark serves as the punctuation at the end of the sentence, and adding a period would be redundant.
no you can't because a period is already a punctuation but you can add an exclamation mark after a question mark to make a surprised sound but that's unformal
In casual writing you might be able to replace a question mark with a period, especially in dialog to indicate intonation, but usually the sentence structure of questions is different, so that a period will not be correct. For example, "Where did you go?" is correct as a question, but "Where did you go." is not correct.
No. A question always has to end with a question mark.
Period - . Exclamation Point - ! Question Mark - ?
The two common sentence signals for the end of a sentence are a period (.) and a question mark (?). A period is used for declarative and imperative sentences, while a question mark is used for interrogative sentences.
If you are asking the question it ends with a question mark. If you are quoting a question it has to be quoted exactly as it was written but can be contained in a regular sentence that ends in a period.
This is a period: . A period is used to denote the end of a sentence after a statement have been given. In the case of asking a question, or making an exclamation, you would use a question mark or exclamation mark respectively.
This *might* be referring to end punctuation, i.e. the punctuation mark at the end of a sentence or question. It might be a period, a question mark, an exclamation mark.