Answer:
It describes the rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem.
Sources are carbon emitters
sinks are carbon absorbers
The movement of any material from one place to another is called a flux
Egestion: The act of excreting unusable or undigested material from a cell
Explanation:
fluxes are flows of carbon between sources and sinks. A source may also be a sink.
