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Subjects
Science CBSE
Class 8
Pollution of air and water
Textbook questions
19.
NCERT Exemplar X
Exercise condition:
4
m.
Give short answers to the following question:
Match the items of Column A with the items of Column B.
Column A
Column B
(a)
. sulphur dioxide
(i) damage ozone layer
(iii) acid rain
(ii) reduces oxygen-carrying capacity of blood
(iv) green house gas
(b)
. carbon dioxide
(ii) reduces oxygen-carrying capacity of blood
(iii) acid rain
(iv) green house gas
(i) damage ozone layer
(c)
. carbon monoxide
(i) damage ozone layer
(iii) acid rain
(iv) green house gas
(ii) reduces oxygen-carrying capacity of blood
(d)
. chlorofluorocarbons
(ii) reduces oxygen-carrying capacity of blood
(i) damage ozone layer
(iv) green house gas
(iii) acid rain
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