ECONOMICS
ECONOMIC DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Air and water pollution due to coal burning
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Radioactive pollution due to oil leakage
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No pollution was caused
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Electrical pollution due to new technology
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Detailed explanation-1: -In steam engine coal is used as fuel. Coal is burnt to run the steam engine. This burning of coal produces the pollution.
Detailed explanation-2: -When coal is burned it releases a number of airborne toxins and pollutants. They include mercury, lead, sulfur dioxide, nitrogen oxides, particulates, and various other heavy metals.
Detailed explanation-3: -A common mistake that people can make is to think that the “smoke” rising from power station cooling towers is air pollution. However this is simply water vapour being emitted as steam. The picture below shows a power station with its cooling towers producing large quantities of steam. This is not air pollution.
Detailed explanation-4: -When fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain. Major sources of nitrogen oxide emissions include: Cars and trucks. Coal-fired power plants.