Answer:
(a) Smoke released by the refinery contains oxides of nitrogen
and sulphur These gases dissolve in rain water give rise to acid rain. This
acid rain is responsible for yellow colourisation of marbles.
(b) Harmful effects of air pollution are It affects the
respiratory system causing breathing difficulties and disease like asthma, bronchitis,
etc.
(ii) It is also responsible for smog formation in winters.
(c) From the given passage, I have learnt that industries play major role
in air pollution. These should be far from human inhabited areas. I have learnt
the value of care for environment from this passage.
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