Answer :
If the dependent clause is first (again, rather like an introduction to the main clause), it is followed by a comma (like in this sentence and the next). If the independent clause comes first, no punctuation separates the two.
If the dependent clause is first (again, rather like an introduction to the main clause), it is followed by a comma (like in this sentence and the next). If the independent clause comes first, no punctuation separates the two.