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darrellsia darrellsia
wrote...
Posts: 523
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6 years ago
Which of the following is the chief cause of industrial smog?
 
  A) burning fossil fuels
  B) indoor air pollution
  C) generation of nuclear power
  D) fires for heating food
  E) burning trash
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SeitaSeita
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Posts: 371
6 years ago
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Thanks for the assistance/chance to let me help!

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darrellsia Author
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6 years ago
this is exactly what I needed
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Yesterday
Helped a lot
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2 hours ago
Smart ... Thanks!
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