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CHEMISTRY

Chemistry
Which of the following in automobile exhaust can cause cancer?

Lead
Polyclinic hydrocarbons
Oxides of nitrogen
Carbon monoxide

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Chemistry
White lung cancer' is caused by

Silica
Paper
Textiles
Asbestos

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Chemistry
Which of the following is a man-made source of air pollution ?

Automobile exhaust
Forest fire
All of these
Bacterial action in soil and swamp areas

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Chemistry
Oxide of sulphur present in the atmosphere are washed down by rains to cause :

Eutrophication in lakes
Depletion of fossil fuel reserves
Industrial smog formation
Lowering of pH of soil

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Chemistry
Supersonic jet causes pollution by thinning of

CO2 layer
SO2 layer
O 2 layer
O3 layer

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