What are some effective techniques for determining if a source is credible? What are some steps I can take to ensure that the information I present is reliable and accurate?

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.  

the answer is b "spewing black smoke", i took the test and got 100%   hope i

last one is the answer