I believe it is a "Fused" sentence because it includes two main clauses. hope this helps
Answer:
1. Its not very possible it might rain today. The sky is clear.
2. Don't break the speed limit. You may get a fine.
3. The doorbell rang. I think that's Mark. He said he might be here in 20 minutes.
4. The car is making a strange noise. It could be the battery.
5. Lars looks worried. He may be worried because he failed two exams.
Explanation: I hope I helped!
Yellow Journalism means journalism that is over exaggerated and have a lot of sensationalism. For example, this can include newspapers that have big and click bait kind of stuff to make someone want to read the article/newspaper. This technique also raise the sales by a lot.
Best of Luck!
3.The police officer rounded the corner and pumps his arms harder.
I don't see any underlined words in the sentence. However, I'll just post my answer based on my understanding.
Where there is water ⇒ subordinate clause
There are mosquitoes ⇒ independent clause
Independent clause is a complete sentence. It has a subject, a verb, and expresses a complete thought.
Subordinate clause is a dependent clause that starts with a conjunction. It also has a subject and a verb but it is dependent on the main clause.