Question

Mention the main causes of air pollution in metro cities.Write three ways to reduced it

Answer 1

Explanation:

Air pollution is the mixing of foreign substances to the whole atmospheric air. Harmful and toxic gases emitted by the industries and motor vehicles causing huge damage to the living organisms whether plants, animals or human beings. Some of the natural and various human resources are causing air pollution. However, most of the air pollution sources are stem out of the human activities like burning fossil fuels, coal and oil, release of harmful gases and substances from factories and motor vehicles. Such harmful chemical compounds like carbon dioxide, nitrogen oxides, carbon monoxide, sulphur dioxide, solid particles, etc are getting mixed to the fresh air. The level of air pollution has become increased by great extent because of 690% increase in damaging pollutants because of the expanded need of motor vehicles from last century.

Other source of the air pollution is decomposition of garbage in landfills and disposal of solid wastes which are emitting methane gas (dangerous to the health). Rapid growth of population, industrialization, increased use of automobiles, aeroplanes, etc has made this issue a serious environmental problem. The air we breathe every moment is full of pollutants going to our lungs and whole body through blood causing uncountable health problems. Polluted air is causing damage to the plants, animals and human beings in many direct and indirect ways. If the environmental protection policies are not followed seriously and strictly, the increasing level of air pollution may increase up to one million tons annually in the recent decades.

Answer 2

$\huge{\underline{\sf{\red{Answer-}}}}$

________________________________________________________________

Automobile are major cause of air pollution in metro cities. Thermal power plants located with in the limits of metro cities also contribute toward air pollution following are the way to reduce it :-

• Use of electrostatic precipitator in smokestacks of thermal power plants.

• Use of lead free petrol and catalytic converters in automobile.

• Use of compressed natural gas.

• Use public transport as much as possible.

• Use bicycle in colonies as well as on road for safe travels.