Answer:
The 4 types of air masses are polar, tropical, continental and maritime. Their classification depends on their location where they are formed.
Explanation:
One major influence of air mass movement is the upper level winds such as the upper level winds associated with the jet stream. The jet stream wind is often referred to as a steering wind. The troughs and ridges of the jet stream will help transport cold air toward lower latitudes and warm air toward high latitudes.
