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contracts in response, tightening the pressure gradient and causing converging air to rise even higher and faster. The effect is that the updraft is "stretched" upward as it more efficiently sucks up air, with rotation then becoming more organized due to conservation of angular momentum. Since the updraft now pulls in air more strongly, it pulls in more mass and momentum from the surrounding environment, which is conserved in the updraft. In nature this process happens simultaneously with

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