Environmental

Carbon monoxide (CO) in a West Virginia home is dangerous because it is:

AA colorless, odorless gas that can cause death without warning✓ Correct
BEasily detected by smell
COnly dangerous when the concentration exceeds 100 ppm
DProduced only by electric appliances

Explanation

Carbon monoxide is a colorless, odorless, tasteless gas produced by incomplete combustion of fossil fuels. It can cause rapid incapacitation and death without warning, making CO detectors essential in homes with gas appliances, fireplaces, or attached garages.

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