After reading the paragraph below, answer the questions that follow.
The graph below shows records of temperature (light gray line) and CO₂ (dark gray line) over the past 1,000 years. CO₂ is recorded in parts per million (ppm).

-If you focus on the data from the mid-1900s (indicated by the arrow)through today, the graph shows that
A)there is a correlation between CO₂ and temperature; when CO₂ levels are high, so is temperature.
B)there is a correlation between CO₂ and temperature; when CO₂ levels are high, temperature is low.
C)there is no correlation between CO₂ and temperature; CO₂ fluctuates randomly and temperature is constant.
D)there is no correlation between CO₂ and temperature; CO₂ is constant and temperature fluctuates randomly.

Question

After reading the paragraph below, answer the questions that follow.
The graph below shows records of temperature (light gray line) and CO₂ (dark gray line) over the past 1,000 years. CO₂ is recorded in parts per million (ppm).
 
-If you focus on the data from the mid-1900s (indicated by the arrow)through today, the graph shows that
A)there is a correlation between CO₂ and temperature; when CO₂ levels are high, so is temperature. 
B)there is a correlation between CO₂ and temperature; when CO₂ levels are high, temperature is low. 
C)there is no correlation between CO₂ and temperature; CO₂ fluctuates randomly and temperature is constant. 
D)there is no correlation between CO₂ and temperature; CO₂ is constant and temperature fluctuates randomly.

Quizplus · Accepted Answer

The graph shows that when CO₂ levels are high, temperature is also high, indicating a correlation between the two. This can be observed from the mid-1900s onwards.

After Reading the Paragraph Below, Answer the Questions That Follow