National Aeronautics and Space Administration
Carbon Dioxide Quiz - How Much Do You Know?
Smoke stacks.

Take this quiz to test your knowledge of carbon dioxide and why it's so important to climate stability and our quality of life.


1. In the 10,000 years before the Industrial Revolution in 1751, carbon dioxide levels rose less than 1%. Since then they've risen by:


   A 11%
B 37%
C 62%
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Jet Propulsion Laboratory
California Institute of Technology
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