Formaldehyde is an especially problematic indoor pollutant because it is
A) Far more toxic than most other substances
B) Produced naturally by the earth below buildings
C) So difficult to detect
D) Highly carcinogenic
E) Used in so many household materials
Correct Answer:
Verified
Q39: Which of the following statements is true?
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Q42: Which of the following statements is false?
A)
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