Birdwatch Note Rating
2023-12-03 17:27:18 UTC - HELPFUL
Rated by Participant: 7D96B24678C0C0CA0573A9736BEFD4638D385327A09F7F52F80230C3EE68CFA2
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Original Note:
Contrails are line-shaped clouds produced by aircraft engine exhaust. They are composed primarily of water, in the form of ice crystals. The combination of water vapor in aircraft engine exhaust and the low ambient temperatures at high altitudes causes the trails' formation. https://en.m.wikipedia.org/wiki/Contrail
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