Question

What is the disadvantage of using fossil-fuel?

Answer 1

Hint: Fossil fuels are prepared by the natural decomposition of millions of years old fossils. These are used excessively nowadays which directly or indirectly puts adverse effects on the environment.

Complete answer: A fossil fuel is a type of fuel prepared from fossils by natural reactions or processes. It mainly involves anaerobic decomposition of millions of years old fossils of organisms, organic molecules, etc. But there are certain disadvantages of using those:
When petrol, coal, etc. are burned, mostly as vehicle fuels or machine fuels, they release lots of pollutants in the air causing air pollution.
Greenhouse gases are produced due to the excessive use of fossil fuels. Accumulation of those gases causes global warming.
The fuels also release oxide compounds of nitrogen, sulphur, carbon, etc. These oxides are responsible for acid rain.
The presence of the above-mentioned oxides in the soil and water can bring dangerous outcomes to the environment.

Additional information: Fossil fuels can be beneficial as fuel because of the molecules found in the fossils gives energy in combustion. Some of the fossil fuels such as petrol, coal, diesel, etc. Fossil fuels have become necessary in day-to-day life.

Note: Fossil fuels can be used as fuel because the molecules found in the fossils release energy in combustion. Some of the fossil fuels are petrol, coal, diesel, etc. Fossil fuels have become very important in day-to-day life.