Question

carbon is constantly cycling between earths atmosphere and other places on earth. carbon sinks absorb more carbon from the atmosphere than they release. carbon sources release more carbon into the atmosphere than they take in. classify each process as a carbon source or a carbon sink. deforestation, respiration, ocean loss, ocean uptake

Explanation:

Step1: Recall definitions

Carbon sources release more carbon into the atmosphere than they take in. Carbon sinks absorb more carbon from the atmosphere than they release.

Step2: Analyze each process

• Deforestation: Removes trees (which absorb carbon via photosynthesis), so it releases more carbon into the atmosphere. So it's a carbon source.
• Respiration: Organisms release carbon dioxide (a form of carbon) into the atmosphere during respiration. So it's a carbon source.
• Ocean loss: Oceans releasing carbon back into the atmosphere, so it's a carbon source.
• Ocean uptake: Oceans absorbing carbon from the atmosphere, so it's a carbon sink.

Answer:

Carbon source: deforestation, respiration, ocean loss
Carbon sink: ocean uptake