<span>Melanin helps protect the skin against effects of the sun such as skin cancers and premature aging. In African American skin, melanin provides a sun protection factor (SPF) equivalent to 13.4 compared to 3.4 in white skin and thus the former have lower incidences of skin disorders associated with exposure to the sun.</span>
What type of prefixes are you looking for, for this question
Answer:
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Explanation:
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Answer:
Your voice echoing back when you shout into a canyon
Explanation: