Name any four ways to control vehicular air pollution.

Name any two small scale industries that can be the source of particulate air pollution.

Mention whether the following statements are True (T) or False (F).

(i) Liquid kitchen waste alone constitutes the sewage.

(ii) Household detergents are safe and non-contributors to water pollution.

(iii) Industrial wastes mainly consist of chemical pollutants.

(iv) Thermal power plants give out a lot of hot waste water.

(v) Hot water discharged into water bodies hardly affects the fish and other aquatic life.

Mention whether the following statements are True (T) or False (F).

(i) Soil pollution is largely localised.

(ii) Fly-ash and metallic ash are examples of urban domestic waste.

(iii) Chemical fertilisers may reach the rivers but do not harm the fish.

(iv) Biomedical waste may consist of both biodegradable and non-biodegradable waste.

(v) X-rays are a potential source of radiation pollution.

(vi) Unwanted disturbing sound, even if it is music next door, is noise.

(vii) People routinely working in noisy places are not much affected by noise.