1. Qual o pH da pele?

a. Ácido, entre 5,0 e 6,0.

b. Básico, entre 8,0 e 9,0.

c. Nenhuma das alternativas.

d. Básico, entre 11,0 e 13,0.

e. Ácido, entre 1,0 e 2,0.
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