<span>D. There is no single topic sentence.
This paragraph is not focused under one single topic sentence, it moves throughout the features of the earth and how they interact and change the face of the planet. In order to bring this paragraph together more clearly, a topic sentence would have to be added that covers all the information in the paragraph.</span>
If you are using a direct quote from the article in your paper then yes, use an in text citation.
I’m pretty sure it’s D. I apologize in advance if it’s wrong.
