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4 marksNon-Metals

CSEC Chemistry · January 2002 · Paper 2 · Question 6(a)(i)

The nitrogen cycle shown in Figure 2.

Identify W, X, Y and Z in the nitrogen cycle diagram.

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Other parts of this question

  1. 6(a)(ii)Explain the effects of step Y on the availability of nitrates to plants.[3 marks]
  2. 6(b)State THREE advantages and THREE disadvantages of organic farming.[6 marks]
  3. 6(c)(i)Define biological control and discuss the possible long-term implications of its widespread use.[3.5 marks]
  4. 6(c)(ii)Define chemical control and discuss the possible long-term implications of its widespread use.[3.5 marks]

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