Pearson Edexcel Level 1Level 2 GCSE (9–1) Geography B PAPER 1 Global Geographical Issues MAY 2024

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oughnthenbox andnthennmarknyournnewnanswernwithnancross .
1 StudynFiguren1,nwhichnshowsnchangingnlevelsnofncarbonndioxideninnthenatmospherenb
etweenn1960nandn2020.
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Carbonndioxiden 380
partsnpernmillio
nn (ppm)ninnthen 360
atmosphere
340

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1960n 1965n 1970n 1975n 1980n 1985n 1990n 1995n 2000n 2005n 2010n 2015n 2020
Year

Figuren1
(a) (i)n Identifynthenyearninnwhichnthenamountnofncarbonndioxideninnthenatmospherenre
achedn400npartsnpernmillionn(ppm).
(1)
A 2015
B 2000

C 1995

Dnnn1990

(ii) Calculatenthenamountnbynwhichncarbonndioxiden(ppm)nincreasednbetweenn1960na
ndn2020.
(1)


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, (iii) Statentwonhumannactivitiesnwhichncausenthenenhancedngreenhouseneffect.
(2)

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(b) Explainnonenpiecenofnevidencenwhichnsuggestsnhumannactivitynisncausingnclimatenc
hange.
(2)

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