6.1

Question 1

Sequestering

Answer 1

Natural storage of carbon by physical or biological processes such as photosynthesis

Question 2

What type of system is the carbon system

Answer 2

closed system

does not have any external inputs or outputs.
So total amount of carbon is constant and finite

Question 3

Carbon store

Answer 3

reservoirs/pools/stocks where carbon is held

Question 4

Carbon fluxes

Answer 4

movement or transfer of carbon between stores

Question 5

Carbon processes

Answer 5

physical mechanisms which drive fluxes between stores

Question 6

Four carbon stores

Answer 6

• atmosphere
• hydrosphere (oceans, lakes, etc.)
  dissolved carbon dioxide
• lithosphere
  carbonates in limestone and fossil fuels
• the biosphere
  living and dead organisms.