Environmental
Carbon monoxide (CO) in a NC home is most commonly produced by:
ARadon gas migration from the soil
BIncomplete combustion from gas appliances, wood-burning fireplaces, or attached garages✓ Correct
COld lead paint surfaces
DPesticide applications in the yard
Explanation
CO is a colorless, odorless gas produced by incomplete combustion from gas furnaces, water heaters, fireplaces, attached garages (car exhaust), and generators — CO detectors are critical safety devices.
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