27 The carbon cycle Includes processes that release carbon into the atmosphere and places that
act as carbon reservoirs. The diagram below shows both major processes that release carbon
and major carbon reservoirs.
Carbon output to
atmosphere
Organism respiration
• Fuel combustion
• Cement production
Atmospheric
carbon
Carbon reservoirs
Soils and detritus
Dissolved organic carbon
· Ocean sediments
• Terrestrial blota
• Marine biota
• Buried fossil fuels
• Rocks
Which of these disruptions would cause an excess output in the carbon cycle?
A The destruction of terrestrial blota
B Increases in marine biota
CA reduction in the use of fossil fuels
D A thickening of ocean sediments
A
B
С
D