1) Green plants use carbon dioxide in photosynthesis. a) True b) False 2) The word equation for photosynthesis has 3 reactants and 3 products. a) True b) False 3) Combustion removes carbon from the atmosphere. a) True b) False 4) Respiration adds carbon dioxide to the atmosphere. a) True b) False 5) Respiration only occurs in animals. a) True b) False 6) Decomposers remove carbon dioxide from the atmosphere. a) True b) False 7) Fossil fuels represent a huge (but decreasing) store of carbon. a) True b) False 8) Increasing carbon dioxide in the atmosphere may cause global warming. a) True b) False 9) Saprotrophs break down dead plant and animal material in a process known as decay. a) True b) False 10) Carbon is only stored as carbohydrates in organisms. a) True b) False

Carbon cycle quiz

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