Trace carbon between the named stores, identify which process increases or removes atmospheric carbon dioxide and use mass data to quantify the proposed effect.
The diagram shows part of the carbon cycle.
Key
The numbers in smooth brackets ( ) show the mass of carbon in petagrams found in either the atmosphere, plants or surface ocean.
The numbers in square brackets [ ] show the mass of carbon in petagrams transferred between the atmosphere and the plants or surface ocean per year.
A petagram is equal to grams.
The mass of carbon recycling between the atmosphere and the plants, and the atmosphere and the oceans, are roughly balanced.
State how carbon is exchanged between the atmosphere and the oceans.
Anthropogenic climate change is a result of an increase in the mass of carbon in the atmosphere.
Explain one way in which the effects of anthropogenic climate change can be reduced.