1) Which process in the Carbon Cycle involves plants taking in Carbon Dioxide from the atmosphere? a) Respiration b) Photosynthesis c) Decomposition d) Combustion 2) What is the primary source of carbon for plants in the Carbon Cycle? a) Carbonate rocks b) Organic matter in the soil c) Atmospheric Carbon Dioxide d) Fossil Fuels 3) Which of the following organisms play a crucial role in converting Carbon Dioxide into organic matter? a) Animals b) Plants and algae c) Fungi d) Bacteria 4) What happens to the Carbon in the bodies of dead animals and plants? a) It is released immediately into the atmosphere b) It remains locked in the bodies forever c) It is broken down by decomposers and can enter the soil or atmosphere d) It becomes part of fossil fuels directly 5) Which process releases Carbon Dioxide back into the atmosphere? a) Photosynthesis b) Nitrogen fixation c) Respiration d) Transpiration 6) How do human activities most commonly increase atmospheric Carbon Dioxide? a) By planting more trees b) By using solar panels c) By burning fossil fuels d) By conserving energy 7) What role do decomposers play in the Carbon Cycle? a) They convert Carbon Dioxide into Oxygen b) They fix Nitrogen into the soil c) They break down dead organic matter, releasing Carbon Dioxide d) They prevent Carbon from being released into the atmosphere 8) Which human activity is a major contributor to the increase in Carbon Dioxide? a) Planting forests b) Recycling c) Deforestation d) Building dams 9) Which process converts Carbon from organic forms in plants and animals back into inorganic Carbon Dioxide? a) Photosynthesis b) Respiration c) Fossilisation d) Sedimentation 10) How does deforestation affect the Carbon Cycle? a) It increases the rate of photosynthesis globally b) It decreases the amount of Carbon Dioxide released into the atmosphere c) It has no effect on the Carbon Cycle d) It increases atmospheric Carbon Dioxide levels 11) Which of these is not part of the Carbon Cycle? a) Respiration b) Precipitation c) Combustion d) Decay

Carbon Cycle Quiz

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