Question

Katy and Todd were investigating human impact on global carbon emissions. They researched and gathered data from all over the world. They created the double line graph shown.
Which of the following identifies an appropriate conclusion based on the data provided?

Human population and carbon emissions are unrelated.

As the human population decreases, carbon emissions increase. The human population is in decline. Therefore, there is no relation between population and carbon emissions.

As the human population increases, so does the amount of carbon released. More humans means that they are burning more fossil fuels, which releases carbon.

As the human population increases, carbon emissions decrease. More humans means that they are burning less fossil fuels, which releases carbon.

Answer 1

The most appropriate conclusion based on the data described in the double line graph is:

**As the human population increases, so does the amount of carbon released. More humans means that they are burning more fossil fuels, which releases carbon.**

This conclusion reflects a positive correlation between human population and carbon emissions, suggesting that an increase in the number of people leads to higher carbon emissions due to increased fossil fuel consumption.