In the textbook you same across three mile island and chernobyl disasters associated with accidental leakage of radioactive wastes. In India we had Bhopal gas tragedy. It is associated with which of the following?
$\mathrm{CO}_2$
Methyl isocyanate
$\mathrm{CFC}^{\prime} \mathrm{s}$
Methyl cyanate
Use of lead-free petrol or diesel is recommended to reduce the pollutants emitted by automobiles. What role does lead play?
Catalytic converters, having expensive metals namely platinum, palladium and rhodium as the catalysts are fitted into automobiles for reducing emission of poisonous gases and to convert unburnt hydrocarbons into $\mathrm{CO}_2$ and $\mathrm{H}_2 \mathrm{O}$.
Motor vehicles equipped with catalytic to converter need to use unleaded petrol because lead in the petrol, inactivates the catalyst and increases the hydrocarbon emission, there by harming the environment.
In which year was the Air (Prevention and Control of Pollution) Act amended to include noise as air pollution.
In 1987, the Air (Prevention and Control of Pollution) Act was amended to include noise as a source of air pollution.
Name the city in our country where the entire public road transport runs on CNG.
In Delhi, the entire public surface transport especially road transport runs on compressed Natural Gas (CNG)
It is a common practice to undertake desilting of the overhead water tanks. What is the possible source of silt that gets deposited in the water tanks?
The source of silt that get deposited in overhead water tank are soil particles, which are carried out with water from the source of supply like deep borewell, rivers, etc.