E. The number of farms per square kilometer
1 because college has effects that can last your whole life. All of the rest of the answers are short term.
He works as a professional orator
Answer: hyperbole
Explanation:
"Evaporated into thin air" is an hyperbole. It simply means that something has completely vanished or in a situation whereby nobody knows the whereabout of someone or a particular thing.
For example, "The book on my table has evaporated into thin air" simply means that the book was on my table but now, I don't know where it is as it can't be found.
I think I c the answer mate ;)