Carbon - Factors Driving Change In Magnitude Of Stores Over Time

Question 1

Atmosphere to biosphere

Answer 1

CO2 - taken by plants - photosynthesis- grow - goes up foodweb (herbivore, carnivore, omnivore)= sequestration

Question 2

Biosphere to atmosphere

Answer 2

Respiration and decomposition

Question 3

Biosphere to lithosphere

Answer 3

Carbon in form of DOM enter soil

Decomposition

Can remain for 100s of years

Question 4

Atmosphere to ocean

Answer 4

CO2 diffuses in ocean - remains

Marine organisms - make calcium carbonate - create shells

Question 5

Ocean to atmosphere

Answer 5

CO2 diffused from ocean to atmosphere - reverse of atmosphere to ocean

Question 6

Ocean to lithosphere

Answer 6

Sedimentation

Long term carbon store

Question 7

Lithosphere to atmosphere

Answer 7

Volcanic eruptions

Combustion through burning fossil fuels

Question 8

Lithosphere to ocean

Answer 8

Acid rain

CO2 absorbed by rain water - chemical weathering

Carbon stored in rocks is released and is now dissolved and then carried by the water cycle to oceans