Sentences with phrase «annually by photosynthesis»
Because the source of carbon is plant matter (foods and other farm crops), the net flux of carbon to the atmosphere from these sources is assumed to balance the carbon being sequestered annually by photosynthesis.
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This has been enhanced by the rise of CO2; currently, the biosphere takes up about 2 billion tonnes (petagrams, or Pg) of carbon equivalent as the difference between the action of two processes of much greater magnitude, photosynthesis and respiration, both on the order of 70 Pg annually.