Answer:
The answer to the question: How do you punctuate the sentence: The Colonial Period is also called the pre Revolutionary War era, would be: "The Colonial Period is also called the pre-Revolutionary War era".
Step-by-step explanation:
Looking at this sentence, there is only one punctuation mark that would be missing, unless we try to change the structure of it. In general, the sentence is well written, except for the fact that pre Revolutionary needs to be hyphenated, or joined by a hyphenation mark. The reason would be that hyphens are used to show the connection betwee two words that in essence would seem different, but that need to come together as a whole before the main noun. In this case, War would be the main noun and pre-Revolutionary describes this war. Thus, the two words: pre and revolutionary, need to be joined together with a hyphen.