carbon cycle Flashcards
1
Q
what is carbons role (3)
A
- ingredient in living tissue
- important component of animal skeletons (CaCO3)
- important component of the atmosphere (CO2)
2
Q
how does carbon enter the atmosphere (4)
A
- volcanoes/forest fires
- respiration by animals and plants (at night)
- decomposition of waste by decomposers
- burning fossil fuels
3
Q
what is carbon taken up by (3)
A
- photosynthesis
- formation of fossil fuels from dead plant life
- shells and skeletons which make carbonic rock
