Question

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Answer 1

Answer:

Products formed during combustion of fossil fuels.

The primary pollutants are Carbon Monoxide (CO), Carbon Dioxide (CO2), Sulfur (SO2), Nitrogen Dioxide (NOx), Nitric Oxide (N2O), Volatile organic compounds (VOCs), and Hydrocarbons (HCs).

Due to the burning of Fossil fuels, many harmful pollutants are formed such as Nitrogen Oxides (NOx), Carbon Monoxide (CO), Volatile Organic Compounds (VOCs), Particulate Matter, Lead, Mercury and Sulfur dioxide (SO₂).

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Answer 2

Answer:

4) Substance which produce heat and light on burning is termed as fuel.

Various liquid things which can be burnt to release energy and release heat and light during burning (combustion) are termed as Liquid Fuels.

Fuels that exist in gaseous state in room temperature are called Gaseous fuels.

5) Fossil fuels emit carbon dioxide, when burned. Due to the burning of Fossil fuels, many harmful pollutants are formed such as Nitrogen Oxides (NOx), Carbon Monoxide (CO), Volatile Organic Compounds (VOCs), Particulate Matter, Lead, Mercury and Sulfur dioxide (SO₂).

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