When continental polar air moves over a relatively warm lake, such as one of the great lakes, the air mass acquires both heat and moisture, resulting in on the land leeward of the lake.
a) a nor-easter lake effect snow
b) a polar air mass
c) a mari-time air mass

A Lake Effect Snow

When continental polar air moves over a relatively warm lake, such as one of the Great Lakes, the air mass acquires both heat and moisture, resulting in on the land leeward of the lake.

a nor-easter

lake effect snow

a polar air mass

a mari-time air mass

Explanation:

Lake Effect Snow occurs when cold air, usually from Canada, travels over the surface of big Lakes. Because the temperature of these lakes is higher than that of the air, moisture rises into the atmosphere. The combination of this moisture and heat transforms into clouds and results in heavy snow showers. This is common in autumn or winter.

These lakes and surrounding areas where lake effect snow occurs are known as snowbelts.

In contrast, a Nor'easter is a storm along North American eastern coasts, hence the name.

polar areas, such as antarctica or the south pole.