CSEC Agricultural Science · May/June 2007 · Paper 2

30 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)4 marksComplete Table 1 by matching the appropriate agricultural career to each description: (i) Study of insects, (ii) Study of diseases affecting crops, (iii) Supply of fertilisers and agricultural chemicals to farmers, (iv)…
2. 1(b)6 marksDiscuss THREE likely effects of global warming on crop and livestock production in the Caribbean.
3. 2(a)4 marksList FOUR activities carried out on your school farm that should be recorded in your farm diary.
4. 2(b)(i)2 marksFrom your study of agricultural economics, name the curves labelled X and Y in Figure 1.
5. 2(b)(ii)1 markState what the point P represents with respect to price and quantity in Figure 1.
6. 2(b)(iii)3 marksThe curve labelled Z shows a shift to the left of curve X. Explain, giving THREE reasons, what could have caused this shift.
7. 3(a)3 marksCalculate the gross margin for the farm using the data in Table 2. Show all working.
8. 3(b)(i)3 marksIn January 2006, a farm tractor was valued at $18 000. By the end of the year it depreciated by 20%. Calculate the value of the tractor at the end of 2006, showing all working.
9. 3(b)(ii)1 markComplete the statement by selecting the correct word from the options: Depreciation is classified as a (fixed, variable, capital) cost.
10. 3(c)3 marksFarmer Afzal wants to purchase a five-hectare plot of land next to his farm. Advise him of THREE risks he must consider regarding this farm expansion.
11. 4(a)4 marksSuggest FOUR non-chemical ways of controlling weeds in vegetable crops.
12. 4(b)(i)4 marksAdvise Raoul on FOUR procedures to follow for the care and maintenance of a knapsack sprayer used on his bean plot.
13. 4(b)(ii)2 marksExplain why Raoul should NOT mix the weedicide and insecticide together in the knapsack sprayer.
14. 5(a)4 marksList FOUR factors affecting soil fertility.
15. 5(b)6 marksDiscuss THREE practices that vegetable farmers can use to conserve water on their farms during a predicted period of lower than normal rainfall.
16. 6(a)2 marksName TWO irrigation systems used in the Caribbean for vegetable cultivation.
17. 6(b)2 marksName TWO major plant nutrients.
18. 6(c)6 marksExplain THREE stages involved in sowing and caring for tomato seedlings in a seed box.
19. 7(a)(i)1 markComplete the statement by choosing the correct term: During a heavy shower of rain, the raindrops cause (rill, gully, splash, run-off) erosion.
20. 7(a)(ii)1 markComplete the statement by choosing the correct term: The soil type most easily eroded by wind is (clayey, sandy, loamy).
21. 7(b)4 marksName TWO management practices used to control soil erosion, and explain how each practice functions to control erosion.
22. 7(c)4 marksExplain the role of forests in water conservation by giving TWO points.
23. 8(a)4 marksIdentify the parts labelled W, X, Y and Z from the cross-sections of the monocotyledonous and dicotyledonous stems shown in Figure 2 and Figure 3.
24. 8(b)6 marksExplain THREE benefits of organic farming.
25. 9(a)(i)2 marksName TWO farm animals that have the type of digestive system shown in Figure 4.
26. 9(a)(ii)4 marksBriefly explain ONE function of EACH of the following organs: a) Crop, b) Gizzard.
27. 9(b)2 marksName TWO management practices important for the care of young chicks.
28. 9(c)2 marksChoose ONE of the management practices named in 9(b) and explain why it is important.
29. 10(a)4 marksName TWO breeds of livestock developed in the Caribbean and state the purpose for which EACH breed is reared.
30. 10(b)6 marksExplain THREE principles that influence the establishment of housing for broilers.