Carbon Cycle
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10 Terms
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Biogeochemical cycles
Pathways by which elements circulate through ecosystems
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What is the importance of biogeochemical cycles?
Recycle essential nutrients
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What are the 4 processes of the carbon cycle?
Photosynthesis
Respiration
Decomposition
Combustion
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Photosynthesis process
Removes CO2 from atmosphere
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Respiration process
Releases CO2 back into atmosphere
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Decomposition Process
Breaks down organic matter, releasing CO2
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Combustion process
Burning fossil fuels adds CO2
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Examples of carbon sinks
Oceans, forests, fossil fuels
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Keeling curve
Graph showing the increase of CO2 in Earth’s atmosphere over time
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Significance of keeling curve
Evidence of rising atmosphere CO2 due to human activities
Note 
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