Yes, "site-specific" is hyphenated. The hyphen is used to connect the words "site" and "specific" to indicate that they function together as a single adjective describing a noun, such as in "site-specific art." This helps clarify that the specificity pertains to a particular site.
It is not hyphenated.
No it's not hyphenated.
Motorcycle is not hyphenated
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
No, "hardworking" is not hyphenated.
Yes it should be hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
No. Well above is not hyphenated.
The word desperate hyphenated
peace of mind is not hyphenated.
"Field" is not hyphenated.
Yes it should be hyphenated.