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4 marksFood Chains, Food Webs, and Decomposers

CSEC Biology · January 2020 · Paper 2 · Question 4(a)

Figure 3 is a simplified diagram of the carbon cycle.

Name the processes labelled A, B, C and D.

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Other parts of this question

  1. 4(b)Recently, there has been an increase in human activities which resulted in the increase of atmospheric carbon dioxide. Suggest THREE human activities that…[6 marks]
  2. 4(c)Suggest THREE practices that can be adopted to reduce the impact of human activities on the carbon cycle.[3 marks]
  3. 4(d)Human activities can lead to an increase in greenhouse gases. Name TWO greenhouse gases other than carbon dioxide.[2 marks]

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