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.

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

(i) Diseases like cholera and jaundice are the results of soil pollution.

(ii) CO₂ and methane are directly contributing to global warming.

(iii) Erosion of ancient monuments and statues is caused by acid rain which itself is the result of gaseous pollution.

(iv) Use of unleaded petrol and Compressed Natural Gas (CNG) in automobiles is one of the methods of abatement of gaseous and particulate air pollution.

The prime source of chlorofluorocarbons is:

1. Domestic sewage
2. Refrigeration equipment
3. Industrial effluents
4. Vehicular emissions

Which of the following gas can cause acid rain ?

1. Sulphur dioxide
2. Ammonia
3. Hydrogen
4. Nitrogen