Explain the methods of preventing acid rain.

Method of preventing acid rain are:

1. Using alternate energy sources — alternatives to burning of fossil fuels such as compressed natural gas [C.N.G.] or use of cleaner energy sources such as hydro power or wind energy causes almost no pollution.
2. Usage of technical devices — such as catalytic convertors, which can reduce nitrogen oxide emissions from automobiles [usage of electrostatic precipitators in industries].