Recently, I have noticed that our student body has adopted a practice that should be avoided. Students discard a large amount of uneaten food during lunch. Everything thrown in the trash bins ends up in a landfill, which is a problem because the pollution and gases related to landfills can harm the environment. The writer uses the first sentence to:
O point out several effects of the problem.
O sum up the importance of the problem.
O propose a solution.
O express a viewpoint

(please help soon, doing exam! will take down your response if it's not helpful)

D) Express a viewpoint.

Explanation: in the given paragraph we can see that the speaker is describing how the students discard large amounts of uneaten food during lunch, which ends up in a landfill, producing pollution and gases that harm the environment. In the first sentence, the writer says that he has noticed this problem, which implies that he uses this sentence to clarify that he is expressing his point of view.

Explanation:

answer: a

explanation: a because she needs to study for her test and get grades for it

i think that the major difference is that it used to be modern