(A) Photosynthesis in land plants fixes atmospheric CO2 (inorganic carbon) as organic carbon, which is either stored as plant biomass or in soil, or is decomposed back to CO2 through plant and ...

Filmed in the Canadian Arctic, this program identifies and explores the physical and human factors, including climate change that affect carbon and water cycles in the tundra. Stages 4-5 Science and ...

The carbon cycle is the biogeochemical cycle focused on carbon and how it is sequestered in and moves between different reservoirs in the Earth system. Microbial activity in marine sediment acts ...