Environmentalhard · Past Paper
The 'Keeling Curve' represents the measurement of which gas in the atmosphere?
AOxygen at sea level
BMethane in the Arctic
CCarbon dioxide at Mauna Loa
DOzone over Antarctica
✓ Correct Answer: C — Carbon dioxide at Mauna Loa
The Keeling Curve is a graph that plots the ongoing change in concentration of carbon dioxide in Earth's atmosphere since 1958.
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