I would say the editing phase, as I have done a lot of writing and multiple people around me refer it as that, but the revising stage also covers editing, which doesn't make much sense. I guess that it depends on what your class taught you. Sorry if this doesn't help you, but my best answer would be the editing, since it covers going back through a paper to check for errors. Do you know what the exact definition of "editing" and "revising" is and could you get back to me with that?
The best way to increase reading comprehension is to read more often.
Reading different types of books, with different subjects and content,
will condition your brain to retain more information over time. This
will also give you the ability to read more quickly.
A more positive word for argument is discussion
Generally with an executive summary
telling the purpose of the report and aims and objectives