The comma goes inside the quotation marks.
Explanation: It's plain to see why the residents are still happy. It's difficult not to live the good life with sunshine 85 percent of the year, pristine beaches, delectable food, and a laid-back Mediterranean mentality. It's no surprise that it's one of Europe's most famous vacation spots!.and greece is known well for history!
Is that the correct question?
I would say the correct answer is that has an undetermined answer.
If a subject has been thoroughly covered, then there is no need for this researcher to do it all over again. If it's impossible to answer, there is no need to try. If it can be answered easily, then it doesn't really require a research. This leaves us with the last option, because a researcher might want to try and determine the answer.
Coralline algae, sponges, and other organisms contribute is a fact. All the others are opinions
hope this helps:))