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he figure below shows the record of monthly-averaged and seasonally-adjusted atm

ID: 231773 • Letter: H

Question

he figure below shows the record of monthly-averaged and seasonally-adjusted atmospheric carbon dioxide (CO2) gas concentrations measured at the Mauna Loa Observatory in Hawaii beginning in 1958 and ending in 2014. Answer the questions below pertaining to these measurements. You might want to have a simple calculator available to help you with these questions. Question 2.1 (1 point) Reading from the figure, what was the level of CO2 in the atmosphere at Mauna Loa when these measurements started (±1 ppm)?

Explanation / Answer

From the graph it is visible the first point in graph is (1958, 314) ...so when the measurements started the level of Co2 is 314 ppm