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प्रश्न
Explain what is smog. Give its effects.
उत्तर
Smog is a photochemical haze or smoky mist caused by the action of solar UV radiation on the atmosphere, which is polluted by primary pollutants. Secondary pollutants such as formaldehyde, aldehydes and peroxyacetyl nitrate(PAN) collectively form smog.
Effects of smog:
(i) It reduces visibility.
(ii) It is highly suffocating and toxic.
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संबंधित प्रश्न
How does ozone affect any ecosystem?
Name the group of chemical compounds which damages the ozone layer.
Give one harmful effect of CFC.
Which pollutant released into the air during refrigeration and airconditioning is the greatest contributor to the depletion of ozone layer?
(a) BHC
(b) DDT
(c) CFC
(d) UNEP
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(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
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Number of Oxygen atom in Ozone.
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Depletion of ozone is mainly due to
