Carbon
NASA
Earth has many processes that regulate carbon, atmospheric carbon dioxide and its role in the carbon cycle and climate. How much do you know?
Answer questions like ...
- Which one of these increases the level of carbon dioxide in our atmosphere?
- Why do levels of carbon dioxide in the atmosphere fall during the summer in the Northern Hemisphere?
- Carbon dioxide is not the only carbon-containing compound in the atmosphere researchers are studying. What else are scientists looking at?
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