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Madam Madam
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Posts: 722
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6 years ago
What are the so-called greenhouse gases that trap heat?
 
  a) carbon dioxide, methane, nitrous oxide, ozone, chlorofluorocarbons
  b) oxygen, water vapor, black carbon, carbon dioxide
  c) hydrogen, nitrogen, sulfur dioxide, oxygen
  d) carbon dioxide, methane, oxygen, ozone
  e) ozone, smog, nitrous oxide, aerosols
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wrote...
6 years ago
A
Madam Author
wrote...
6 years ago
This is exactly what I've been wanting
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