I believe that the correct answer would be CO2.
The North Atlantic Current (NAC) allows the Arctic port of Murmansk to remain ice-free, because it is a powerful warm current. This current is also referred to as North Atlantic Sea Movement. It extends from southeast of the Grand Bank, off Newfoundland, Canada, to the Norwegian Sea, off northwestern Europe.
Answer:
C, A small battery has stored magnetism that can be used to attract paper clips.
Explanation:
Relic Boundary is the correct answer :)