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(I NEED THIS ANSWER QUICK FAST AND IN A HURRY. I'M ON A CUMULATIVE EXAM)

Which element is most important for adding strength to hair, feathers, and outer skin?

A.oxygen
B.hydrogen
C.sulfur
D.phosphorus

User EricLeaf
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2 Answers

1 vote
Sulfur is most important for adding strength to hair, feathers, and outer skin.
User Nelstrom
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5 votes
sulfur.....................
User Zacharyliu
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