The Sources of Air Masses Occur Only in Low and High

question 74

Multiple Choice

The sources of air masses occur only in low and high latitudes because

• A)middle-latitude weather is too variable.
• B)middle-latitude weather is not variable enough.
• C)there are no oceans in the middle latitudes.
• D)there is insufficient contrast in surface type (land vs. ocean)in the middle latitudes.

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