Some of the physiographic features that cause extreme aridity may be found together within a single desert,but the deserts found in the western United States are primarily due to being located ____________.

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Deserts found in the western United States are primarily due to being located within the rain shadow of one or more mountain ranges. As moist air masses move from the west towards the mountains, they are forced to rise and cool, causing precipitation on the windward side of the mountains. However, as the air mass descends on the leeward side, it warms and dries out, creating dry and arid conditions.

Some of the Physiographic Features That Cause Extreme Aridity May