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1 markEnvironmental Impacts and Threats to Agriculture

CAPE Environmental Science Unit 2 · 2010 · Paper 2 · Question 3(a)(iii)

Figure 3 shows the causes of soil degradation (erosion, salinisation, soil compaction, and acidification) at Farm A and Farm B.

What percentage of soil degradation on Farm B was caused by erosion?

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Other parts of this question

  1. 3(a)(i)Comment on the causes of soil degradation as shown in Figure 3. Include specific values in your response.[3 marks]
  2. 3(a)(ii)What mechanism caused the LEAST soil degradation?[1 mark]
  3. 3(b)Conservation tillage would be a good measure for reducing soil degradation. Give TWO reasons to support the statement above.[4 marks]
  4. 3(c)(i)What is meant by 'mechanization in agriculture'?[3 marks]
  5. 3(c)(ii)Suggest FOUR reasons why farmers in some rural areas may not wish to increase the level of mechanization in their farming operations.[8 marks]

More practice: the rest of this paper · more Environmental Impacts and Threats to Agriculture questions · all CAPE Environmental Science Unit 2 past papers