the Keeling Curve shows that ... atmospheric carbon dioxide concentrations have
ID: 153024 • Letter: T
Question
the Keeling Curve shows that ...
atmospheric carbon dioxide concentrations have risen steadily over the last 60 years.
the biosphere has no impact on atmospheric composition.
Hawaii's temperature has risen steadily over the last century.
atmospheric carbon dioxide concentrations were higher in 1960 than they are today.
a.atmospheric carbon dioxide concentrations have risen steadily over the last 60 years.
b.the biosphere has no impact on atmospheric composition.
c.Hawaii's temperature has risen steadily over the last century.
d.atmospheric carbon dioxide concentrations were higher in 1960 than they are today.
Explanation / Answer
The keeling curve is the curve which plots the carbon dioxide concentration in the atmosphere from 1950s. The measurements are done from the Mauna Loa Observatory. And it concluded that carbon dioxide concentration increased over the past years. So the answer is option a.
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