Complete the following model of the carbon cycle by filling in $A, B, C, D, E,$ and $F$.

  • A
    $A-$Osmosis,$B-$Photosynthesis,$C-$Respiration,$D-$Burning of fuel wood,$E-$Forest food chain,$F-$Limestone
  • B
    $A-$Photorespiration,$B-$Respiration,$C-$Respiration,$D-$Burning of organic debris,$E-$Pond food chain,$F-$Dolomite
  • C
    $A-$Respiration,$B-$Photosynthesis,$C-$Respiration,$D-$Combustion of fossil fuels,$E-$Aquatic food chain,$F-$Coal,oil
  • D
    $A-$Respiration,$B-$Photosynthesis,$C-$Respiration,$D-$Burning of forest,$E-$Terrestrial food chain,$F-$Forest

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