1 It is important to __________awareness about climate change.
A.be
B.raise
C.make
D.know
2 Environmentalists are concerned about global __________ .
A.world
B.warming
C.warm
D.heating
3 Scientists say that polar ____________ are melting.
A.ice cubes
B.ice caps
C.ice blocks
D.ice land
4 Environmentalists say that the temperature change is because of an increase in CO2 ___________from industrialised countries.
A.emissions
B.smoke
C.clouds
D.vapour
5 CO2 is just one of the ____________gasses.
A.green
B.greener
C.greenhouse
D.glasshouse
6 Scientists also say that we should all try to reduce our own carbon ____________ .
A.copy
B.footprint
C.impression
D.effect
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