Answer:
I Would bc it's the better opportunity
A, because the shape of it forms and arc much like a H2O molecule.
Answer: The moon
Explanation: hope this helps.
A compound has to be chemically bonded, however, air is not chemically bonded.
This can be proven by freezing air. By freezing air, it yields different liquids at different temperature. Liquid nitrogen has a different boiling point than liquid oxygen.
If air was a compound, they would all have a single boiling point and a single freezing point.
Hope this helps :)