Question

What is the relationship between CO2 levels and temperature?

What can you infer from this? (make a guess or assumption based on the data)

Approximately what year did the concentration of CO2 first exceed 300 ppm?

Answer 1

I can infer that higher levels of CO2 result in warmer temperatures. The CO2 first exceeded 300 ppm in 1950.

Let me know if this helps!