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kay20213 kay20213
wrote...
6 years ago
A sunscreen with an SPF of 15 protects the skin from ________ of ultraviolet B radiation.
 
  A) 85 B) 90 C) 93 D) 97
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wrote...
6 years ago
C
kay20213 Author
wrote...
6 years ago
Thank you for being such a great leader
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