1.	(a)	(i)	correct links shown	4

1 link for 1 mark
2 links for 2 marks
3 links for 3 marks
4 links for 3 marks
5 links for 4 marks
do not credit if more than one link
goes to or from any box
(ii)	nuclear (power station)	1
do not accept power station
	(b)	(i)	heat from the Sun	1
(ii)	kinetic	1
(iii)	insufficient wind (to turn turbine)	1
accept wind does not always blow
do not allow it does not always work or it is switched off
do not accept wind in wrong direction
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2.	(a)	gas	1

(b)	fuel burning stations produce electricity at any time / all the time	1
accept fuel available all the time
	wind generator can only produce when the wind is strong enough	1
accept it’s not always windy
(c)	no fuel is burnt or	1
no fuel is used or
uses only energy from wind or
does not emit harmful gases / soot / smoke
do not accept wind is natural / environmentally friendly / renewable
answer must be in terms of wind, not negative of fuel burning
specific examples of gases CO2, SO2,
acid rain and greenhouse gases can be accepted
ozone negates credit
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3.	(a)	any three from:	3
	coal     gas     oil     uranium     plutonium
(b)	(i)	turbine	2
generator
(ii)	produce steam	1
reject boil water
	(c)	(i)	any two from:	2
low start up
low running cost
no pollution
renewable
(ii)	any two from:	2
visual pollution
noise pollution
intermittent
allow wind speed varies
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4.	(a)	must give one advantage and one disadvantage of each to get 4 marks	6
and 2 further scoring points
Advantages and disadvantages relevant to:
(1) health risk
(5) cost
(6) environmental factors
(7) transport/ storage
e.g. common coal / nuclear - high cost of building both
	anti-nuclear examples
nuclear fuel transported on roads/rail in region
possible effects on public health in surrounding area
high cost of de-commissioning
long life very active waste materials produced
how waste materials stored safely for a long time
	anti-coal examples
unsightly
pollution
supplies of fuel limited
acid rain
non-renewable
	pro-nuclear examples
fuel cheap
no foreseeable fuel shortage

	pro-coal examples
safe
reliable
large coal reserves
disposal of solid waste is easier
to max 6
(b)	choice 0 marks	3
	any three valid reasons each with explanation, which may or may not 
be comparisons with other fuel
	But
	at least two of which must be relevant to this site
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