(i ) State the consequence if the electrostatic precipitator of a thermal plant fails to function.
(ii) Mention any four methods by evhich the vehicular air pollution can be controlled.

Study the picture given below and answer the following questions : (i) Identify the type of pollution. (ii) Name one pollutant that causes the above pollution. (iii) Mention the impact of this pollution on human health. (iv) State one measure to control this pollution. (v) What is a 'Pollutant ? Explain the term.

Consider the following statements with respect to pollution. A. To control air pollution problems, by the end of 2002 all the buses of Delhi were converted to run on unrelated petrol B. Electrostatic precipitator can remove over 99% particulated matter present in the exhaust from a thermal power plant. C. It is possible to estimate the amount of organic matterin sewage water by measuring BOD. Of the above statements: