12. Which excerpt from An inconvenient Truth would be best demonstrated by the graph? A. “But when too much of the atmosphere is made up of greenhouse gases, it leads to global warming.”
B. “The amount of CO2 in the atmosphere can be measured.”
C. “Geothermal power stations are now generating energy this way.”
D. “The climate crisis…means we are going to have to change the way we live our lives.”