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Subjects
Science State Board
Class 8
Air
Properties and uses of gases and global warming
1.
Acid rain: Match the following
Exercise condition:
3
m.
1
.
Cutting trees
Human activity
Natural source of acid rain
2
.
Erupting volcanoes
Human activity
Natural source of acid rain
3
.
Carbonic acid
Water + Carbon monoxide
Water + Carbon dioxide
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