-Which of the following is the most reasonable conclusion based on the data in the figure?
A)There is a great deal of uncertainty in measurements of global atmospheric carbon dioxide levels.
B)Average annual atmospheric carbon dioxide concentrations have been increasing since 1960.
C)Carbon dioxide molecules multiply themselves over time.
D)Forest fires and fossil fuel combustion are increasing atmospheric carbon dioxide concentrations.

Question

-Which of the following is the most reasonable conclusion based on the data in the figure?
A)There is a great deal of uncertainty in measurements of global atmospheric carbon dioxide levels. 
B)Average annual atmospheric carbon dioxide concentrations have been increasing since 1960. 
C)Carbon dioxide molecules multiply themselves over time. 
D)Forest fires and fossil fuel combustion are increasing atmospheric carbon dioxide concentrations.

Quizplus · Accepted Answer

The figure clearly shows an increase in the average atmospheric concentration of carbon dioxide since 1960. Option A cannot be concluded as the data shows a relatively consistent increase in carbon dioxide levels. Option C is not supported by the data presented in the figure. Option D is a possible explanation for the increase, but cannot be confirmed based solely on the data presented.

-Which of the Following Is the Most Reasonable Conclusion Based