AP Environmental Sciencemediummcq1 pt
Which indoor source produces carbon monoxide?
A.A malfunctioning gas furnace
B.A refrigerator
C.New carpet
D.Houseplants
Explanation
Core Concept
Incomplete combustion in furnaces, stoves, and generators releases CO — the reason CO detectors matter in every home.
Correct Answer
AA malfunctioning gas furnace
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