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zoebundoc zoebundoc
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6 years ago
These statements are about carbon monoxide. Which is correct?
 
  a. It is a blue tasteless gas.
  b. It is produced by the burning of candles.
  c. It is a harmless gas.
  d. It can cause death.
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jordomoltsjordomolts
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6 years ago
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zoebundoc Author
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6 years ago
You make an excellent tutor!
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Smart ... Thanks!
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Thanks
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