CAPE Agricultural Science Unit 2 · 2016 · Paper 2

21 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)(i)2 marksExplain the potential effects that land clearing for vegetable production can have on the water supply on the farm.
2. 1(a)(ii)2 marksExplain the potential effects that land clearing for vegetable production can have on the water supply in downhill off-farm locations.
3. 1(a)(iii)2 marksExplain the potential effects that land clearing for vegetable production can have on water quality in downhill off-farm locations.
4. 1(b)6 marksExplain THREE soil conservation measures that could be practised on the rehabilitated estate.
5. 1(c)3 marksState THREE environmental benefits of having cocoa and Immortelle trees on the land.
6. 2(a)(i)2 marksRecommend TWO tropical meat breeds of sheep for the Caribbean.
7. 2(a)(ii)2 marksExplain TWO reasons why the tropical breeds are more suitable for the Caribbean than temperate breeds.
8. 2(b)6 marksIf the decision is made to develop hybrids from tropical sheep breeds for meat production, briefly explain THREE traits on which their selection should be based.
9. 2(c)5 marksSelect a locally grown forage for dairy goats, and give TWO reasons for this selection.
10. 3(a)(i)3 marksIdentify THREE animal species that can be used as micro-livestock in rural schools.
11. 3(a)(ii)4 marksExplain TWO factors that may impact on the suitability of urban schools for micro-livestock propagation.
12. 3(a)(iii)4 marksExplain ONE advantage and ONE disadvantage, from a consumer perspective, of using micro-livestock as a food source for the school-feeding programmes.
13. 3(b)(i)1 markWhat is meant by 'sperm sexing'?
14. 3(b)(ii)3 marksExplain how sperm sexing could increase the harvestable size of the fish.
15. 415 marksIdentify by name SO2, NOx, NMVOC, NH3, and CO2 shown in Figure 1. Describe the sources of these pollutants and their effect on the air quality.
16. 5(a)3 marksExplain why the cattle are most likely losing muscle mass.
17. 5(b)4 marksSuggest TWO ways in which Farmer Clark could increase the marketability of his beef, and TWO socio-economic factors that could affect marketability.
18. 5(c)8 marksExplain FOUR strategies he could use to avoid such a situation in the successive dry season.
19. 6(a)5 marksState FIVE questions she should ask to identify the critical control points (CCPs) in her processing system.
20. 6(b)5 marksUsing an example, explain what is meant by 'critical limits'.
21. 6(c)5 marksSusann is producing minced chicken. Suggest FIVE critical control points where hazards could occur in the process.