Find four research topics and specify whether qualitative or quantitative thus 2 each and write down the elements.​

Hi. You did not inform the survey to which this question refers, which makes it impossible for it to be answered accurately. However, I will try to help you as best I can.

Generally speaking, in a survey, quantitative topics are those that have numbers. These are the statistical, mathematical topics that seek to present the research through numerical data. Qualitative topics, on the other hand, are those that present explanations about the complexity of the research data, or present the details that are important for the understanding of the research, without taking into account statistical, mathematical and measurable data.

In that case, to answer that question, you should read the entire article that features the research and identify those topics based on the description above.

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.