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2011 Integrated Science Paper

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Political Science
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Exam Practice
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2011 Cxc Integrated Science Paper 2
by preddimiss
SECTION A
Answer ALL FOUR questions.
(a)
Light energy is converted to another type of energy when green plants make food, (i) What kind of
energy is stored in this food?
1;Li
(ii)
4-__
(imark)
What substance is combined with carbon dioxide during photosynthesis?
dthc
(b)
mar)
Describe bow plants and animals may become fossil fuels.
Z___iL
€Jrr
iW.Ld urthr
(c) Country X is a flat, tropical island, The electricity generating company in Country X uses a
petroleumbased fuel. Name TWO alternative sources of energy that can be used for electricity
generation in this country. (i) (1 mark) (ii)
(1 mark)
(d) For EACH alternative source named in (c) above, gie ONE disadvantage which may cause the

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electricity generating company to resist using the alternative source of energy dcntified I
&
ua
----
(1 mark)
urtcin
4
jQ-LtIL

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2011 Cxc Integrated Science Paper 2 by preddimiss SECTION A Answer ALL FOUR questions. (a) Light energy is converted to another type of energy when green plants make food, (i) What kind of energy is stored in this food? 1;Li (ii) 4-__ (imark) What substance is combined with carbon dioxide during photosynthesis? dthc (b) mar) Describe bow plants and animals may become fossil fuels. Z___iL ?Jrr iW.Ld urthr - (c) Country X is a flat, tropical island, The electricity generating company in Country X uses a petroleumbased fuel. Name TWO alternative sources of energy that can be used for electricity generation in this country. (i) (1 mark) (ii) (1 mark) (d) For EACH alternative source named in (c) above, gie ONE disadvantage which may cause the electricity generating company to resist using the alternative source of energy dcntified I & ua ---- (1 mark) urtcin 4 jQ-LtIL 7/1/LI (e) Recently, many used (pre-owned) vehicles have been imported from Japan and the United States into the Caribbean. This has resulted in an increase in the number of vehicles on the roads and increased amounts of carbon dioxide in the air. (i) Name TWO other pollutants which are being added to the atmosphere because of the increase in the number of vehicles. aw pitd. (ii) ether ftcu-t !tL_j-A1r .uwIuuii. ,ri-Gn flW1L&& (2 marks) 4LcvLA1 State ONE negative effect of ONE of the pollutants named in (e) (i) above, on the environment. iihhtuU d1LLt1 At I 11H1 L1U1 UCLftfl 4 j-t (I ( ...
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