1) What is an air mass? a) A large region of air with the same temperature and humidity b) A small pocket of air that changes quickly 2) Why do air masses move? 🌪️ a) Because the Earth stops spinning b) Because of differences in air pressure 3) What happens when a warm air mass meets a cold air mass? ❄️ a) The warm air rises, and the cold air stays low b) The cold air rises, and the warm air sinks 4) What is a front? 🌫️ a) The boundary where two air masses meet b) type of storm 5) What kind of weather do cold fronts usually bring? ⛈️ a) Thunderstorms, rain, or snow b) Sunny and warm weather 6) What happens after a cold front passes? 🌤️ a) B) The weather stays stormy for days b) The weather becomes cool and clear

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