I. carbon- oxygen cycle
1. what 4 organic compounds is carbon found in?
2. carbon dioxide comprises approximately what percent of tropospheric gases?
3. how is the relative amount (%) of co2 significant in contributing to the earth’s “natural
thermostat”?
4. identify the two processes which have the greatest influence on tropospheric
concentrations of co2 on a monthly or yearly basis.
5. name the two largest sinks (storage areas) for carbon.
6. discuss how oceans play a major role in regulating co2 levels in the trophosphere
7. describe the two major anthropogenic interventions in the carbon cycle