1) The ozone layer, located in the Earth's stratosphere, protects us from harmful ultraviolet (UV) radiation.
2) The musical "Les Misérables" is one of the longest-running shows in the West End and Broadway, with over 13,000 performances.
3) The word "forest" contains two vowels: O and E.
4) The windshield wipers were invented by a woman named Mary Anderson in 1903.
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