Which air mass may produce an occasional nor’easter during winter?
a. mp
b. ct
c. cp
d. mt

Answer: mP.

Explanation:

Nor'easter is a cyclone that occurs in the north Atlantic ocean. It is accompanied by heavy rain or snow at cold temperatures and it causes the maximum damage during the winter season. The air masses responsible for its formation are the mP (Maritime polar) air masses which are known for being unstable as well as cool and moist.The mP air masses from the north Atlantic are responsible for causing nor'easters storm.