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http://kids.britannica.com/comptons/article-196091/air-force the first hot air balloon was used for military purpose
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the first hot air balloon was created for military purpose since the late 18th century
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the first hot air ballon was is world war 1
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the first hot air ballon was in world war 1 so people can bom each
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as you can see the first hot air has been around for a long time
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a hot air ballon can go about 2,000 feet
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some people go high up and skydive
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hot air balloons are really populer
