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← GeographyWhich outcome occurs when a continental air mass is forced upward over elevated terrain near streams carrying large amounts of sediment?
A)Higher precipitation rates downwind✓
B)Reduced evapotranspiration rates locally
C)Increased chemical weathering upstream
D)Lower stream water temperatures ahead
💡 Explanation
Orographic lift forces the air mass to cool, creating condensation and precipitation; because mountain ranges commonly obstruct airflow over watersheds carrying silts and sediments and increase localized saturated conditions enhancing rainfall downwind, rather than altering evapotranspiration/weathering independently where air rises.
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