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4 marksNutrient Cycles and Energy Flow

CAPE Environmental Science Unit 1 · 2005 · Paper 2 · Question 1(a)

Questions concerning the carbon and phosphorus cycles.

Using an example of EACH, distinguish between 'carbon sinks' and 'carbon sources'.

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Other parts of this question

  1. 1(b)(i)With the use of an annotated diagram, outline the movement of carbon between the atmosphere and the biotic components of the terrestrial ecosystem.[5 marks]
  2. 1(b)(ii)With the use of an annotated diagram, outline the phosphorous cycle.[6 marks]
  3. 1(c)(i)Identify the MAJOR difference between the carbon cycle and the phosphorous cycle.[1 mark]
  4. 1(c)(ii)Outline the MAJOR consequence of the difference between both cycles indicated in (c)(i).[4 marks]

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