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Argentina Argentina
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6 years ago
The atmospheric levels of which gas rise due to the greenhouse effect?
 a. carbon monoxide
  b. nitrogen
 c. radon
 d. carbon dioxide
 e. nitrous oxide
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vazadirvazadir
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6 years ago
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Argentina Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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Yesterday
Smart ... Thanks!
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2 hours ago
This helped my grade so much Perfect
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