Question

Typical United States weather patterns show the continental polar air mass moving south toward the Gulf of Mexico. Why does this air mass movement happen? A) Colder air masses move from north to south. B) Continental air masses always move in the direct of the nearest body of water. C) The polar air mass moves south to replace the rising maritime tropical air mass. D) The continental polar air mass is blocked in by maritime air masses on all sides.

Answer 1

The correct answer is letter (C) The polar air mass moves south to replace the rising maritime tropical air mass. These air masses are bringing cold air to warmer areas most especially during the winter and cool. These air masses are stable and usually does not form much cloud. While the Continental Polar air move down south, across the warmer land, the lower part of the air mass is modified and thus few clouds are formed.