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Title: The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least ... Post by: sunil1285 on Jan 23, 2018 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 Title: The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least ... Post by: srw23557 on Jan 23, 2018 Content hidden
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