Coal and Petroleum

Coal:
- Coal is a fossil fuel that is formed from the remains of plants that lived and died millions of years ago.
- It is a non-renewable source of energy and is found in underground deposits called coal mines.
- Coal is primarily used for electricity generation, heating, and in industrial processes.
- There are different types of coal such as anthracite, bituminous, and lignite, with varying energy content.
- The burning of coal releases harmful pollutants into the atmosphere, contributing to air pollution and climate change.

Petroleum:
- Petroleum, also known as crude oil, is a fossil fuel that is formed from the remains of marine organisms.
- It is found underground in reservoirs and is extracted through drilling.
- Petroleum is a versatile energy source used for transportation, heating, and in the production of various products such as plastics, fertilizers, and pharmaceuticals.
- It is refined into different products such as gasoline, diesel, and jet fuel through a process called fractional distillation.
- The burning of petroleum products releases greenhouse gases into the atmosphere, contributing to global warming.