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Physics, 31.10.2019 18:31 tdupre14

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jane and emily are going out in the sun. the protections they have used are listed below:

jane: cap, uv blocking glasses, shirt with short sleeves
emily: hat, sunglasses, spf 30 sunscreen

who used better protection from the sun?

jane, because spf above 30 harms the skin
emily, because a sunscreen protects the skin
emily, because short sleeves lower skin temperature
jane, because glasses reduce the amount of harmful rays

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