The Carbon Cycle

Test yourself on The Carbon Cycle

• What process adds carbon to the atmosphere when fossil fuels are burned?

• What group of organisms returns the carbon locked in the bodies of dead plants and animals back to the atmosphere?

• Which of these are true regarding carbon during the carbon cycle?

• How does the way animals obtain carbon differ from the way producers obtain it?

• A sealed container holds only animals and no plants. What happens to the carbon dioxide level inside, because of respiration?