I think the first sentence is correct, and you should remove the word have in the second
well im sure this will get taken down, cause its copied and pasted, but i hope this helps :)
1.Read. The first step to a well-written summary is to read the original piece of work. ...
2.Gather the Main Idea. Once you've finished reading the original piece, take time to reflect on what you've read. ...
3.Reread while Taking Notes. ...
4.Organize your Notes. ...
5.Create a thesis statement. ...
6.Draft a Short Paragraph. ...
7.Check for accuracy. ...
8.Revise.
Here is the site so I didnt plagerize technically, I pulled certain parts and gave crdit where it was due :)))
https://www.enotes.com/topics/how-write-summary
Answer:
A. The sentence gives an opinion.
Answer:
Sedimentation.
Explanation:
All the other types of pollution are air pollution caused by the release of chemicals into the air, while sedimentation is not.