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sunil1285 sunil1285
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6 years ago
The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least 400,000 years.
  Indicate whether the statement is true or false
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srw23557srw23557
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6 years ago
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sunil1285 Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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Yesterday
Good timing, thanks!
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2 hours ago
Thanks
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