Why Are All Air Masses Labeled Either "Polar," "Arctic" or "Tropical

question 77

Multiple Choice

Why are all air masses labeled either "polar," "arctic" or "tropical"?

• A)because heat exchanges occur only in the low and high latitudes
• B)because energy exchanges occur only in the high latitudes
• C)because heat and energy exchanges occur only in the low and high latitudes
• D)because air masses don't form in the middle latitudes

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