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Title
Hot Air Balloon #237522326
Description
A hot-air balloon is a lighter-than-air aircraft consisting of a bag,called an envelope,which contains heated air. Suspended beneath is a gondola or wicker basket,which carries passengers and a source of heat,in most cases an open flame caused by burning liquid propane. The heated air inside the envelope makes it buoyant,since it has a lower density than the colder air outside the envelope
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