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Meteor showers occur less often than before Their observation equipment is in poor repair Light pollution has remained unsolved for years Their eyesight is failing due to artificial lighting
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the city’s lights affected the meteor watching the meteors flew past before being noticed the city light show attracted many people the meteor watching ended up a social outing
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Lessen the chance of getting cancer create an ideal observation condition ensure citizens a good sleep at night enable all creatures to live in harmony
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