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?
Sample questions
- People have been concerned about the rise in carbon dioxide in our atmosphere, the result of human activity, since what period of time?
- Plants use carbon dioxide and water to make their own food through the process of photosynthesis. When they are doing a lot of photosynthesis, plants reflect light strongly in which of the following wavelengths?
- What role do the oceans play in the carbon cycle?
Use the Start Show button above to start playing!
