A cold front is formed when a cold air mass runs into what?

• Correct Answer: dry air mass
• hurricane
• cool air mass
• warm air mass

Explanation: A cold front forms when a cold air mass runs into a warm air mass ( Figure below ). The cold air mass moves faster than the warm air mass. So the cold air mass lifts the warm air mass out of its way. As the warm air rises, its water vapor condenses. Clouds form, and precipitation falls. If the warm air is very humid, precipitation can be heavy. Temperature and pressure differences between the two air masses cause winds. Winds may be very strong along a cold front.

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