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A sunscreen with a SPF of 30, when applied properly, protects against approximately _________________ of the sun's UVB rays.

A.30%
B.70%
C.97%
D.50%​

2 Answers

4 votes
the answer to this is A
User Bcf Ant
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2 votes
A. 30% because SPF mean sun protection factor
User Kenttam
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