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Cycles within ecosystems

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Question 3

Five key processes in the carbon cycle are:

  1. Photosynthesis
  2. Respiration
  3. Decomposition
  4. Combustion of biomass
  5. Dissolving in oceans (ocean absorption)
a.

How many of these five processes remove carbon dioxide (CO2\text{CO}_2CO2​) from the atmosphere?

[1]
b.

How many of these five processes release carbon dioxide (CO2\text{CO}_2CO2​) into the atmosphere?

[1]
c.

Name one group of organisms primarily responsible for the process of decomposition.

[1]

Cycles within ecosystems Questions

  1. IGCSE
  2. /Biology
  3. /Cycles within ecosystems