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Author Question: Due primarily to human activities, the atmospheric concentration of methane has decreased over the ... (Read 72 times)

lracut11

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Due primarily to human activities, the atmospheric concentration of methane has decreased over the last decade or so.
  Indicate whether the statement is true or false

Question 2

Most of Earth's carbon dioxide is in the atmosphere.
  Indicate whether the statement is true or false



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sarajane1989

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Answer to Question 1

False

Answer to Question 2

False




lracut11

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Reply 2 on: Jul 13, 2018
Wow, this really help


vickyvicksss

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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