How can burning of fuels be harmful?
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Answer:
pollution hota ha burning of fossil fuels SA use electrical vehicles in many countries recently
Harmful Gases Produced by Burning of Fuels
Fuel consumption has enormously increased in the last century due to fast industrial development and thermal power plants. The emerging fine particles and gas have harmful effects on environment,humans, animals and plants.
1. Carbon fuels like wood, coal, petroleum release unburnt carbon particles. These fine particles are dangerous pollutants causing respiratory diseases such as asthma.
2. Incomplete combustion of these fuels gives carbon monoxide gas. It is a very poisonous gas. Therefore, never sleep in a room with burning or smouldering coal fire in it. The carbon monoxide gas produced can kill persons sleeping in that room.
3. Combustion of most fuels releases carbon dioxide in the environment. Increased amount of carbon dioxide in the air is causing global warming (rise in temperature of the atmosphere). At this rate, one day it may melt the polar glaciers which will lead to a rise in the sea level causing floods in the coastal areas.
4. Burning of coal and diesel releases sulphur dioxide gas which is an extremely suffocating and corrosive gas. Moreover petrol engines give off gaseous oxides of nitrogen. Oxides of sulphur and nitrogen dissolve in rainwater and form acids. Such rain is called acid rain. It is very harmful for crops, buildings and soil.
These days CNG (Compressed Natural Gas) is being used in place of diesel and petrol as fuels in automobiles.The harmful gases and particles produced by CNG are much smaller than produced by diesel and petrol. CNG is a cleaner fuel.