CSEC Agricultural Science · May/June 2015 · Paper 2

33 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)2 marksState TWO advantages of using containers to cultivate these plants.
2. 1(b)2 marksSuggest TWO ways of modifying this system of growing lettuce shown in Figure 1 for greater efficiency.
3. 2(a)2 marksIdentify TWO advantages of using agricultural credit unions as a source of capital.
4. 2(b)2 marksStudy the data in Table 1 and provide TWO reasons to justify the marketing officer's decision that Janet is not ready for the export market.
5. 3(a)2 marksWith reference to soil pH, explain the difference between acidic and alkaline soils.
6. 3(b)2 marksExplain how this lack of calcium is likely to affect the yield of watermelons.
7. 4(a)(i)1 markState what is meant by the term 'sexual propagation'.
8. 4(a)(ii)1 markIdentify ONE advantage of sexual propagation.
9. 4(b)2 marksExplain how an increase in the bee population is likely to affect citrus production.
10. 5(a)2 marksIdentify the parts labelled A and B in Figure 2. Write your answers in the spaces provided in Figure 2.
11. 5(b)(i)1 markSuggest how thin shells that crack easily are likely to affect the marketability of the egg.
12. 5(b)(ii)1 markSuggest ONE way by which this problem can be eliminated.
13. 6(a)1 markWhat does the acronym 'FCR' mean?
14. 6(b)1 markCalculate the value of the FCR for the Yanick breed, using the information in Table 2.
15. 6(c)2 marksIndicate which of the two breeds of broiler birds has the better FCR and explain your answer.
16. 7(a)1 markExplain the meaning of the term 'gross farm income'.
17. 7(b)2 marksDistinguish between variable cost and fixed cost.
18. 7(c)(i)2 marksUsing the information provided in Table 3 on page 8, identify TWO variable costs.
19. 7(c)(ii)1 markUsing the information provided in Table 3 on page 8, identify ONE fixed cost.
20. 7(d)(i)3 marksFarmer Broderick wants to increase the number of birds reared by 50 units, increasing variable costs by $1500. Calculate, stating the formula: His additional income.
21. 7(d)(ii)3 marksCalculate, stating the formula: The change in net profit.
22. 8(a)(i)1 markState what is meant by 'moulding'.
23. 8(a)(ii)2 marksIdentify TWO benefits of moulding.
24. 8(b)(i)2 marksIdentify EACH pest responsible for the damage shown in Leaf A and Leaf B in Figure 3.
25. 8(b)(ii)2 marksExplain TWO ways in which the damage caused by these pests can affect farm profitability.
26. 8(b)(iii)2 marksSuggest TWO ways by which these pests can be controlled.
27. 8(c)(i)1 markWhich type of irrigation system should be recommended to this dairy farmer wanting to irrigate his pasture?
28. 8(c)(ii)2 marksMake a sketch of the unique components of the irrigation system recommended in (c) (i) above. Label any TWO parts.
29. 9(a)3 marksIdentify the tool shown in Figure 4 and explain its use in the management of honey bees.
30. 9(b)2 marksSuggest TWO reasons that may account for the low yield of honey in Mark's apiary.
31. 9(c)2 marksExplain how mixing honey with a sugar solution is likely to affect the quality of his honey.
32. 9(d)3 marksSuggest THREE reasons that may account for the increasingly aggressive behaviour of the bees.
33. 9(e)2 marksSuggest TWO management practices that could be followed to address this aggressive behaviour problem.