Since 1958,CO₂ in the atmosphere has
A)increased in concentration by 30%.
B)decreased in concentration by 30%.
C)remained at about the same concentration from year to year.
D)disappeared entirely.
E)has doubled in concentration.

Question

Since 1958,CO₂ in the atmosphere has
A)increased in concentration by 30%.
B)decreased in concentration by 30%.
C)​remained at about the same concentration from year to year.
D)​disappeared entirely.
E)​has doubled in concentration.

Quizplus · Accepted Answer

Since 1958, atmospheric CO₂ levels have increased significantly, by approximately 30%, due to human activities such as burning fossil fuels and deforestation.

Since 1958,CO₂ in the Atmosphere Has