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What Causes Clouds To Form. Web cold air is more dense than warm air, so when a warm air mass meets a cold air mass, the cold air ends up below the warm.
Web cold air is more dense than warm air, so when a warm air mass meets a cold air mass, the cold air ends up below the warm.
Web cold air is more dense than warm air, so when a warm air mass meets a cold air mass, the cold air ends up below the warm. Web cold air is more dense than warm air, so when a warm air mass meets a cold air mass, the cold air ends up below the warm.
