1 What is a carbon sink? Give two examples of carbon sinks.2 Explain how you are part of the carbon cycle.Apply and analyse3 What is the difference between the geological carbon cycle and the biological/physical carbon cycle?4 List two ways human activity affects the carbon cycle.5 Compare the speed at which carbon is released into the atmosphere through thebiosphere and burning. How does this compare with carbon being released from thehydrosphere?
Question
1 What is a carbon sink? Give two examples of carbon sinks.2 Explain how you are part of the carbon cycle.Apply and analyse3 What is the difference between the geological carbon cycle and the biological/physical carbon cycle?4 List two ways human activity affects the carbon cycle.5 Compare the speed at which carbon is released into the atmosphere through thebiosphere and burning. How does this compare with carbon being released from thehydrosphere?
Solution
- A carbon sink is any reservoir, natural or otherwise, that absorbs more carbon than it releases, thereby lowering the concentration of CO2 from the atmosphere. Globally, the two most important carbon sinks are vegetation and the ocean. Public awareness of the significance of CO2 sinks has grown since passage of the Kyoto Protocol, which promotes their use as a form of carbon offset.
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