3 years ago

Melissa uses a sunscreen with an spf rating of 20. what does this does this mean?

1 answer:

4 0

If the SPF rating is 20 then it means it would provide 20 times the protection instead of no sunscreen and 20 times longer someone would take before the person started to burn or in this case 200 minutes.

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NNADVOKAT [17]

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vredina [299]

Answer:

Explanation:

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From the question we have

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avanturin [10]

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Mademuasel [1]

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10.0 g of calcium carbonate is treated with 10.0 g of HCl and,

Marysya12 [62]

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