Copper will not easily form a new substance when in contact with which of the following? moist air nitric acid sulfuric acid carbon dioxide

The answer I believe is moist air because it doesn't have a reacting bond in the molecules  

This is what i found “nuclear fuel is material used in nuclear power stations to produce heat to power turbines. heat is created when nuclear fuel undergoes nuclear fission. most nuclear fuels contain heavy fissile actinide elements that are capable of undergoing and sustaining nuclear fission.” i hope this you for what your looking for. can you plz mark me brainliest?

Ithink the answer is 56.