The four are Maritime tropical, Continental tropical, maritime polar, and Continental polar
Air masses can affect the weather because different air masses differ in temperature, density, and moisture content.
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589. Technicly
maritime polar, maritime tropical, continental tropical, and continental polar
Look in the science book
Air masses can affect the weather because different air masses differ in temperature, density, and moisture content.
Four main types of air masses influence weather in North America: maritime tropical, continental tropical, maritime polar and continental polar.
CT and MT
The Hudson Bay is not an area where the maritime tropical air masses that affect north America originate.
Tropical Polar Continental Maritime
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cpThe air masses with the least influence on the weather of North America are the continental tropical air masses.
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Air masses affect climate in the same way mountains or mountain barriers do.