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Climate change: Is your opinion informed by science? Take our quiz!

Jason Wachter/St. Cloud Times/AP Photo/File
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Climate change has become a politically-charged, divisive issue, but the underlying science is relatively simple and has been around for more than 150 years. Do you know what causes global warming?

1. What is the most abundant greenhouse gas in the atmosphere?

Carbon dioxide

 

Methane

 

Water vapor

 

Oxygen

 
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