Are there supposed to be options?
Anyhow, you use quotation marks when you're quoting another person or when you're quoting a phrase. Also, you can use it when a person(s) are speaking. An example would be..
Rosa said, "Mac and cheese is the best food on earth."
Or
Rosa said, "Mac and cheese is the best food on earth." Henry gave a look of disgust and said, "I disagree. Pizza is the best food."
Because the lithosphere and the mantle have gases that turn in circles. Hope this helped :)
C.
These are all explanations offered for a phenomenon and differ based on their degree of concreteness.
Answer:
Tired?
Explanation: Is there more to the problem?