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An elongated area of high pressure on an air pressure map is called a(n) ______, and an elongated area of low pressure is called a(n) ______.

Answer :

Answer: (1) ridge  (2) trough

Explanation:

A ridge is an elongated area of relatively high pressure extending from the center of a high-pressure region. A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure.