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    Geology/Geography/Oceanography/Atmospheric Sciences
  3. Study Set
    Geosystems Study Set 1
  4. Exam
    Exam 11: Climate Change
  5. Question
    Present Atmospheric Methane (CH₄) Concentrations Are at Approximately________ Ppb
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Present Atmospheric Methane (CH₄) Concentrations Are at Approximately________ Ppb

Question 118

Question 118

Multiple Choice

Present atmospheric methane (CH₄) concentrations are at approximately________ ppb.


A) 750
B) 1000
C) 1500
D) 1800

Correct Answer:

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