1.4 carbon cycle

Source: A process or reservior that____ carbon

emit

Sink: A reservoir that ___ carbon for long periods

stores

The largest reservoir on Earth; stores carbon for millions of years in limestone, coal, oil, and natural gas.

Sedimentary Rocks and Fossil Fules

The largest active reservoir; holds dissolved inorganic carbon and calcium carbonate in sediments.

Deep Ocean

Stores carbon as decomposed organic material and dead plant roots

Solids and organic matter

Holds gaseous carbon as carbon dioxide and methane. Fast-cycling, but relatively small capacity

Atmosphere

Stores carbon in plant biomass through photosynthesis

Terrestrial Vegetation

Identify a carbon sink that holds carbon for hundreds to millions of years. 

• Limestones

• Fossil Fuels

Identify a carbon sink that holds carbon for days to decades

• Atmosphere

• surface ocean waters

Identify one fast and one slow step of the carbon cycle

Fast: Photosynthesis

Slow: Fossil Fuel Formation

Identify 3 carbon sinks

• plants

• soil

• ocean

Identify 3 carbon sources

• Fossil fuel combustion

• deforestation

• animal agriculture

Identify photosynthesis as a carbon sink or source

carbon sink

Identify CR as a carbon sink or source

Source

Identify 2 quick processes that cycle carbon between the atmosphere and biospehre

respiration and photosynthesis