Problem:
Our take an atmospheric sample outside on a cold day in Cleveland. You take the sample back to the warm lab and analyze the sample, finding it contains 1,800 ppbv of methane.
Required:
Question: What is the actual atmospheric concentration of methane?
-Less than 1,800 ppbv
-1,800 ppbv
-More than 1,800 ppbv
Note: Please provide reasons to support your answer.