AP Environmental Science: Carbon Cycle Quiz - Test Your Knowledge!

📚 Quick Study Guide

• 🌱 The carbon cycle is the process through which carbon atoms continually cycle from the atmosphere to the Earth and then back into the atmosphere.
• 💨 Photosynthesis: Plants absorb carbon dioxide ($CO_2$) from the atmosphere to create energy.
• decay and respiration release carbon back into the atmosphere or soil.
• 🔥 Combustion: Burning fossil fuels releases stored carbon into the atmosphere as $CO_2$.
• 🌊 Ocean Exchange: The ocean absorbs and releases $CO_2$ from the atmosphere.
• ⛰️ Sedimentation: Carbon can be stored in sedimentary rocks for long periods.
• 🌡️ Human activities, like deforestation and burning fossil fuels, significantly impact the carbon cycle, leading to increased atmospheric $CO_2$ levels.

🧪 Practice Quiz

1. Which of the following processes removes carbon dioxide from the atmosphere?
   1. Respiration
   2. Combustion
   3. Photosynthesis
   4. Decomposition
2. Which of the following is a major carbon reservoir?
   1. The atmosphere
   2. Fossil fuels
   3. Oceans
   4. All of the above
3. What is the role of decomposers in the carbon cycle?
   1. Absorbing carbon from the atmosphere
   2. Releasing carbon into the atmosphere through respiration
   3. Converting carbon into fossil fuels
   4. Storing carbon in sedimentary rocks
4. How does deforestation affect the carbon cycle?
   1. It increases the rate of photosynthesis.
   2. It reduces the amount of carbon stored in biomass.
   3. It increases the amount of carbon stored in the soil.
   4. It has no effect on the carbon cycle.
5. Which human activity contributes the most to increased atmospheric carbon dioxide levels?
   1. Agriculture
   2. Deforestation
   3. Burning fossil fuels
   4. Waste disposal
6. What process converts carbon in living organisms back into the atmosphere after they die?
   1. Photosynthesis
   2. Respiration
   3. Decomposition
   4. Combustion
7. Which of the following describes carbon sequestration?
   1. The release of carbon dioxide into the atmosphere
   2. The capture and long-term storage of carbon dioxide
   3. The process of photosynthesis
   4. The decomposition of organic matter