The graph shows data collected near the Mauna Loa volcano in Hawaii from 1955 to 2015. The data includes atmospheric CO2 levels, seawater CO2 concentrations, and seawater pH readings. If the current trend continues, the seawater near Mauna Loa will likely become due to the changing concentration of in the water.

Which of the following answers best describe why the fugitive slave act was so controversial? a fugitive slaves who were caught were to be sent back to africa, and southern states disagreed with this practice. b it required all runaway slaves to be sentenced to death, and most people were against this extreme form of punishment. c fugitive slaves were required to work twice as long before they could be freed, and northern states opposed this. d it required all americans to return runaway slaves to their owners, and abolitionists in free states opposed this law.