Q. 3
Why is the burning of fossil
fuels both a useful and harmful chemical reaction?
Also, give three examples of fossil fuels and mention their uses.
Answers
Answer:
Coal, crude oil, and natural gas
Answer:
What are Fossil Fuels?
The substances which act as energy sources are known as fuels. The buried organic matters which can be converted to crude oil, coal, natural gas or any heavy oils by applying pressure and heat on earth’s crust over hundreds of years are known as fossil fuels. This topic educates about the effect of burning fossil fuels on the environment.
A good fuel is one which is readily available at a cheap rate and produces a moderate amount of heat on burning.
The amount of energy produced by 1 kilogram of fuel is known as its calorific value.
A fuel which burns completely in the air at a moderate rate and produces a large amount of energy is known as an ideal fuel.
No fuel has such properties and hence ideal fuel is not easy to obtain.
Effects of fossil fuels on the environment
The Effect of Burning Fuels on the Environment
Effects of fossil fuels on the environment:
The burning of fossil fuels leads to the release of harmful products into the environment. An increase in the consumption of fuel leads to harmful effects on the environment. Following points will clearly depict these effects:
Carbon fuels such as wood, coal, petroleum release unburnt carbon particles in the environment. These particles are very dangerous pollutants and cause respiratory diseases for example asthma.
Explanation:
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