Fuel

Fuel is a substance that is used to provide energy, such as heat, light, or motion. The energy is used by being converted into a usable form through a chemical or nuclear reaction. Fuels are divided into three main categories: solid fuels, liquid fuels, and gaseous fuels.

Solid Fuels

Solid fuels include substances like coal, wood, and peat. These fuels have been used for heating and cooking purposes for thousands of years. They are typically burned in a controlled environment to release their stored energy.

Liquid Fuels

Liquid fuels, such as gasoline, diesel, and kerosene, are commonly used in transportation. They are typically burned in an internal combustion engine to produce motion.

Gaseous Fuels

Gaseous fuels, including natural gas, propane, and butane, are often used for heating, cooking, and electricity generation. They are typically burned in a controlled environment to release their stored energy.

Environmental Impact

The burning of fuels, particularly fossil fuels, has a significant impact on the environment. It releases greenhouse gases into the atmosphere, contributing to global warming and climate change. There is a growing movement towards the use of renewable energy sources, such as wind, solar, and hydroelectric power, which have a lower environmental impact.

See Also

• Energy
• Renewable energy
• Fossil fuel
• Greenhouse gas
• Global warming
• Climate change

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