A scientist has a container with a substance inside. At first, the molecules in thesubstance move away from each other. Later, the
molecules move around each oter. What change did the scientist
observe in the substance?
Help pls

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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