Answer: C.Although extracting natural gas from shale in a process called fracking is believed to be safe by industry experts, scientists beg to differ with them.
Explanation: A conclusion is the last part of something, its end or result. In a written work, the conclusion is used to introduce some final comments at the end of the piece of writing. From the given options, the claim restatement that would be most appropriate to start the conclusion paragraph, is the corresponding to option C, because it summarizes the main idea or claim of the essay, without developing more information.
The sentence that contains a dangling modifier is C) Looking through the window, the room seemed very large.
It is dangling because we don't know who the participial phrase <em>looking through the window </em>refers to. It certainly doesn't refer to the room, the room wasn't looking through the window.
Ugly words and a group of buzzards
The answer is B, Run-on sentence.
Dingy can be defined as dirty looking or shabby