The definition of "tone" in literature is the way the author expresses his attitude through his writing. The tone can change very quickly or may remain the same throughout the story. Tone is expressed by your use of syntax, your point of view, your diction, and the level of formality in your writing.
I'd say beautiful is too general and should be replaced.
Question 2
Answer: Across the bay, fleets of old fishing boats was seen on the horizon.
Explanation: The subject <em>fleets</em> (plural noun) <em>of old fishing boats </em>mismatches the verb <em>was seen </em>(only for I/he/she/it)
Question 5
Answer: John cried.
Explanation: This sentence is the only one with a subject and a predicate. "Because he wasn't hungry" is a reason clause that must depend on another sentence. "Rebekah drove a race car she won three races" is not a valid sentence unless you place a semicolon after the word "car" to separate the two predicates in it (or a period to make two separate sentences).
Question 10
Answer: I studied
Explanation: The subject "I" is not properly divided from the verb (studied), complement (for the test) and the independent clause joined by the word "but" (but I still didn't pass it).
The answer is C.
The passage talks about the two moons. Describing them and giving the readers interesting facts. Therefore, this would be the best topic sentence.
I hope this helps. Have a great night!