Geography • Physical GeographyEasy
Which of the following describes the rain shadow effect experienced on the leeward slopes of mountain ranges?
A. Moisture-laden air rises, cools, and drops heavy precipitation on the leeward side
B. Descending air warms adiabatically, lowering relative humidity and resulting in dry conditions✓ Correct Answer
C. Cold polar air masses collide with warm tropical air directly over mountain peaks
D. Surface pressure increases sharply, creating permanent stagnant anticyclonic conditions
💡 Solution & Explanation
The rain shadow effect occurs when moist air is forced to ascend a mountain barrier, cooling and releasing its moisture on the windward slope through condensation and precipitation. As the now dry air descends the leeward slope, it undergoes compressional warming adiabatically, which increases its capacity to hold moisture, lowers relative humidity, and creates arid or semi-arid conditions. Other choices incorrectly describe windward precipitation mechanisms or unrelated cyclonic phenomena. Understanding orographic barriers is essential for analyzing regional precipitation patterns across peninsular mountain ranges.
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