Use the graph to answer the question.

Question

The vertical axis on the left is labeled CO2 ppm and ranges from 250 to 390 in increments of 20. The vertical axis on the right is labeled temperature and ranges from 13.5 to 14.5 in increments of 0.2. The horizontal axis is labeled year and lists dates from 1000 to 2000 in increments of 100. The graph is a line fluctuating between 270 and 305 from left to right. The line slopes upward near the right end toward the upper right corner.

Which describes the relationship between the concentrations of atmospheric carbon dioxide (blue line) and average global temperatures (red line) over time?

(1 point)
Responses

Carbon dioxide increased significantly prior to the Industrial Revolution that ended in 1840, but global temperatures remained constant.
Carbon dioxide increased significantly prior to the Industrial Revolution that ended in 1840, but global temperatures remained constant.

Both carbon dioxide and global temperatures increased significantly prior to the Industrial Revolution that ended in 1840.
Both carbon dioxide and global temperatures increased significantly prior to the Industrial Revolution that ended in 1840.

Carbon dioxide increased significantly after the Industrial Revolution that ended in 1840, but global temperatures remained constant.
Carbon dioxide increased significantly after the Industrial Revolution that ended in 1840, but global temperatures remained constant.

Both carbon dioxide and global temperatures begin to increase significantly after the Industrial Revolution that ended in 1840.

Answer 1

Based on the description of the graph, it indicates that the concentration of atmospheric carbon dioxide (CO2) shows an upward trend towards the right end, suggesting an increase over time. The average global temperatures also appear to increase alongside the rising CO2 levels.

The correct response would be:

Both carbon dioxide and global temperatures begin to increase significantly after the Industrial Revolution that ended in 1840.

This response aligns with the observation that both CO2 concentrations and global temperatures are rising together, particularly in the later part of the timeline depicted in the graph.