Answer:
I do believe your answer is D: Most of Earth's mantle is always moving.
Hopefully this helped! :D
Because some music contains bad language.
Answer:
an adverb
Explanation:
Swiftly would be an adverb because it is describing the verb flies. An adverb is any word that describes a verb. A helpful way to help find them is that they usually end with an -ly, but remember that not all adverbs end in -ly.