Question: Suppose human activities that influence the carbon cycle came to
a complete stop. Use the informa…
Suppose human activities that influence the carbon cycle came to
a complete stop. Use the information provided in the figure to
predict the net effect on global carbon cycling.
A) Carbon cycling would be brought into balance so that it moves
at equal rates through all compartments.
B) Carbon cycling would be shifted toward an increase in
deposition in sediments and fossil fuels and a decrease in
inorganic carbon dioxide levels.
C) Carbon cycling would be shifted toward an increase in
outgassing of carbon dioxide from ocean waters and a decrease in
carbon levels in living plant biomass.
D) Carbon cycling would be shifted toward an increase in
dissolution of carbon dioxide into ocean waters and a decrease in
carbon levels in living plant biomass.
Show transcribed image text Atmosphere (CO2, CHA) 760 BiomassFossil burning fuel burning, Altered 23 Biomass tuel burning, tand use Photosynthesis 0.3 cement land use manufacture 1 Respiration 120 9.5 Dissolution Outgassing 92 91 Plant biomass 650 60 Soils 1,500 0.8 Runoff Marine biomass 3 Detritus Ocean waters 38,920 Sand, detritus 1,200 Carbonate precipitation 0.2 Carbonate compounds Fossil Sediments 150 in rocks 18 x 106 fuels 25× 106
Atmosphere (CO2, CHA) 760 BiomassFossil burning fuel burning, Altered 23 Biomass tuel burning, tand use Photosynthesis 0.3 cement land use manufacture 1 Respiration 120 9.5 Dissolution Outgassing 92 91 Plant biomass 650 60 Soils 1,500 0.8 Runoff Marine biomass 3 Detritus Ocean waters 38,920 Sand, detritus 1,200 Carbonate precipitation 0.2 Carbonate compounds Fossil Sediments 150 in rocks 18 x 106 fuels 25× 106
