An imperative sentence ends with either a period or an exclammation mark.
A period or an exclamation point depending on the tone of the speaker.
period
The four types of sentences are declarative, interrogative, imperative, and exclamatory. The corresponding punctuation marks are period (.), question mark (?), exclamation mark (!), and period followed by exclamation mark (!.).
A punctuation mark
At the end of a statement (a declarative or imperative sentence), you can use a period. After exclamatory sentences, use an exclamation mark, and after interrogative sentences, use a question mark.
End mark is a synonym for punctuation mark
an apostrophe is a punctuation mark.
Not necessarily. Sometimes it can, like an interrogative question ending in a question mark. Imperative questions though, could end in a full stop or sometimes an exclamation mark or even a colon.
There is no single punctuation mark that all nouns carry.
it is sometimes indicated by a punctuation mark
No. A comma is a punctuation mark.