1) In the atmosphere, carbon is present as ______________________. a) CO2 b) Carbohydrates c) Nitrogen d) Sunlight 2) What is NOT a way carbon dioxide is released into the atmosphere? a) Respiration b) Diffusion c) Volcanic Activity d) Photosynthesis 3) What type of organism takes in carbon dioxide and uses the carbon to build carbohydrates? a) Photosynthesis b) Plants and Algae c) Animals d) Fungi (decomposers) 4) In what organisms does photosynthesis take place in the ocean? a) Photosynthesis b) Plants and Algae c) Animals d) Fungi (decomposers) 5) Name the process where organisms die and are broken down to again be reused. a) Photosynthesis b) Respiration c) Decomposition d) Combustion 6) Decay, burial and compaction of decomposed organic substances over time create what nonrenewable resource? a) Glucose b) Fossil fuels c) Bicarbonates d) Carbon Dioxide

Carbon Cycle

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