Petrol, also known as gasoline, is a liquid fuel derived from crude oil through a refining process. It is primarily used to power internal combustion engines found in vehicles like cars and motorcycles. Petrol is composed of hydrocarbons and is known for its high energy content, making it an efficient fuel source. In addition to its use in transportation, petrol is also utilized in various industrial applications and as a solvent in some products. The combustion of petrol produces carbon dioxide and other emissions, which contribute to environmental concerns, leading to the development of alternative fuels and energy sources.