How would a shift in land use from forest to agriculture affect atmospheric carbon dioxide?
Select one:
a. It would have no effect.
b. It would result in a large release of CO2.
c. It would result in a decrease in release of CO2.
d. Neither forests nor crops contribute significantly to atmospheric carbon dioxide.
2.
The sawtooth pattern of increasing and decreasing carbon dioxide concentrations observed by Charles Keeling at Mauna Loa Observatory was a result of:
Select one:
a. increased burning of fossil fuels during the winter in the northern hemisphere.
b. seasonal changes in photosynthesis and respiration, particularly in northern hemisphere ecosystems.
c. the Kyoto Treaty and other global efforts to limit carbon dioxide emissions.
d. errors caused by monitoring instruments.
How would a shift in land use from forest to agriculture affect atmospheric carbon dioxide?
Select one:
a. It would have no effect.
b. It would result in a large release of CO2.
c. It would result in a decrease in release of CO2.
d. Neither forests nor crops contribute significantly to atmospheric carbon dioxide.
2.
The sawtooth pattern of increasing and decreasing carbon dioxide concentrations observed by Charles Keeling at Mauna Loa Observatory was a result of:
Select one:
a. increased burning of fossil fuels during the winter in the northern hemisphere.
b. seasonal changes in photosynthesis and respiration, particularly in northern hemisphere ecosystems.
c. the Kyoto Treaty and other global efforts to limit carbon dioxide emissions.
d. errors caused by monitoring instruments.
