Question

which kind of weather usually forms over the northwest united states in the summer because of maritime polar air masses?
○ fog
○ dry heat
○ heavy snow
○ heavy rain

Explanation:

Maritime polar air masses are cool, moist air from the northern Pacific. In summer, when this air moves over the relatively warmer land of the northwest U.S., the moist air cools to its dew point, forming fog. Dry heat is from continental tropical air, heavy snow is winter-related, and heavy rain is not the typical summer result here.

Answer:

fog