Question

1. which is the best interpretation that can be made from the graphs?

a. carbon dioxide levels and temperature are not related to each other.
b. increasing carbon dioxide levels are related to decreasing temperatures.
c. the amount of carbon dioxide in the atmosphere has decreased steadily, and the temperature change on the earth has shown an overall decrease.
d. carbon dioxide levels and temperature are related to each other.

Explanation:

This question asks for the best interpretation of (implied) graphs tracking atmospheric carbon dioxide and global temperature. Based on established climate science, carbon dioxide (a greenhouse gas) and global average temperature have a well-documented positive correlation: as CO₂ levels have risen, global temperatures have also increased overall. Option a is incorrect because they are related. Option b is incorrect because rising CO₂ links to rising, not decreasing, temperatures. Option c is incorrect because CO₂ levels have increased, not decreased, and temperatures have risen. Option d correctly states the established relationship between the two variables.

Answer:

d. Carbon dioxide levels and temperature are related to each other.