Which of these buildings is most likely to have indoor air pollution?
2 answers:
Lol there arent any choicess?? hahaha lol
when heater is on for long time without having ventilation then carbondioxide will be converted into carbon monoxide and causes air pollution.
So according to above explanation,
C. A tightly sealed house with an unvented water heater, is the correct answer.
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Answer:
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Explanation:
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i believe its c cause i got that one right
