12.1 Definition of terms: Air, Water and Soil Pollutions.

12.2 Environmental Pollution

12.3 Atmospheric pollution; Tropospheric Pollution; Gaseous

    Air Pollutants (Oxides of Sulphur; Oxides of Nitrogen;

    Hydro Carbons; Oxides of Carbon (CO; CO2).

    Global warming and Green house effect.

12.4 Acid Rain- Particulate Pollutants- Smog.

12.5 Stratospheric Pollution: Formation and breakdown of

    Ozone- Ozone hole- effects of depletion of the Ozone

    layer.

12.6 Water Pollution: Causes of Water Pollution; International

    standards for drinking water.

12.7 Soil Pollution: Pesticides, Industrial Wastes.

12.8 Strategies to control environmental pollution- waste

    Management- collection and disposal.

12.9 Green Chemistry: Green chemistry in day-to-day life; Dry

    cleaning of clothes; Bleaching of paper; Synthesis of

    chemicals