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How does a thunderstorm form?
A thunderstorm is created when a mass of warm air meets a mass of cold air. It is a meteorological phenomenon that occurs in all regions of the world, and more frequently in the tropics. The storm is born in large clouds. The heat on the ground meets the cold air of the cloud, these molecules mix and create a huge electric charge: lightning. The lightning is the most visible and impressive manifestation of a thunderstorm. Photo credit: Johannes Plenio
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