CAPE Environmental Science Unit 2 · 2016 · Paper 2

32 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 marksDescribe the practice of hydroponics.
2. 1(a)(ii)4 marksExplain FOUR benefits of hydroponics.
3. 1(b)(i)4 marksMake FOUR deductions about the contributions made by agriculture to the two countries based on Figure 1.
4. 1(b)(ii)4 marksState in which country the contribution of food security to the economy is GREATER and justify your answer.
5. 1(c)6 marksSuggest THREE reasons why climate change is a major threat to sustainable agriculture in the Caribbean.
6. 2(a)(i)5 marksUse Figure 2 to make FIVE deductions about the impact of the negative effects of agriculture in the country, including specific values from Figure 2.
7. 2(a)(ii)6 marksChoose any THREE negative effects from Figure 2 and for EACH, suggest ONE reason explaining the difference in percentage impact between Year 1 and Year 2.
8. 2(b)3 marksOutline THREE characteristics of commercial agricultural systems.
9. 2(c)6 marksUsing TWO examples, discuss how technology can be used to improve agricultural productivity.
10. 3(a)3 marksOutline the energy conversions that occur when a kettle boiling on a gas stove starts to whistle.
11. 3(b)(i)2 marksIdentify the MAJOR trend illustrated in Figure 3.
12. 3(b)(ii)3 marksCalculate how much spent nuclear fuel accumulated in the United States between 1985 and 2000.
13. 3(c)6 marksCompare and contrast the generation of electricity by conventional and nuclear methods, providing ONE similarity and TWO differences.
14. 3(d)6 marksOutline THREE impacts of conventional electricity generation in the Caribbean.
15. 4(a)3 marksUsing ONE example, briefly explain the importance of energy to Caribbean societies.
16. 4(b)(i)2 marksDefine the term 'energy conservation'.
17. 4(b)(ii)4 marksSuggest ONE approach to improve energy conservation in a Caribbean country's transportation sector, explain how it works, and assess its suitability for the Caribbean.
18. 4(c)(i)1 markState the aim of this experiment.
19. 4(c)(ii)4 marksIdentify the manipulated variable(s), responding variable(s) and control variable(s) in this experiment.
20. 4(d)6 marksEvaluate the feasibility of a Caribbean country switching electricity generation from fossil fuel to hydropower.
21. 5(a)(i)2 marksState what is meant by an environmental receptor.
22. 5(a)(ii)1 markSuggest ONE example of an environmental receptor for noise pollution.
23. 5(a)(iii)5 marksOutline a method to measure the noise intensity of karaoke events at a neighbourhood restaurant, and explain how to determine if it violates noise pollution laws.
24. 5(b)(i)4 marksOn Figure 4, use arrows to indicate the likely movement of pesticides through the ecosystem.
25. 5(b)(ii)1 markIdentify which component is the starting point for the pollution in Figure 4.
26. 5(b)(iii)3 marksIdentify in which component you would expect to find the highest concentration of pesticides and give a reason for your answer.
27. 5(c)4 marksExplain how public awareness/education programmes AND technological processes can be used to mitigate the impacts of pollution on drinking water.
28. 6(a)3 marksList THREE underlying causes of pollution.
29. 6(b)(i)3 marksComplete Table 1 using the values from the calibration curve in Figure 5.
30. 6(b)(ii)2 marksGiven the environmental standard is 75 ppb SO2, state your conclusion about the air quality in January with respect to SO2 and give a reason.
31. 6(b)(iii)6 marksIn May, new legislation was implemented to reduce automobile SO2 emissions. Evaluate its effectiveness using the values in Table 1.
32. 6(c)6 marksExplain why international agreements are required to solve air pollution problems like global warming and ozone depletion.