A high-pressure area is where the
atmospheric pressure higher with respect to its surroundings. Air descends from the troposphere
in its core. The descending air is warmed by compression, causing cloud water vaporize to water
vapor thus frequently giving good weather. A low-pressure area is where the atmospheric pressure
lower with respect to its surroundings. The air flows inwards from the surroundings and causing
vertical motion, as a result the water vapor in the air condense and forms cloud which frequently
gives rain. Therefore, bad weather generally occurs in low-pressure area.
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