PFOS is a specific type of PFAS.

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Multiple Choice

PFOS is a specific type of PFAS.

Explanation:
Understanding how PFOS relates to PFAS: PFAS is an umbrella term for a large family of fluorinated chemicals, while PFOS, or perfluorooctane sulfonic acid, is one specific chemical within that family. So every PFOS molecule is a PFAS, but not every PFAS is PFOS. That makes the statement true.

Understanding how PFOS relates to PFAS: PFAS is an umbrella term for a large family of fluorinated chemicals, while PFOS, or perfluorooctane sulfonic acid, is one specific chemical within that family. So every PFOS molecule is a PFAS, but not every PFAS is PFOS. That makes the statement true.

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