Petrol, also known as gasoline, is a liquid fuel commonly used in vehicles like cars and motorcycles. It is derived from crude oil through a refining process. When petrol is burned in an engine, it produces energy that powers the vehicle, allowing it to move. In addition to fueling vehicles, petrol is also used in various machines and equipment, such as lawnmowers and generators. The use of petrol has environmental impacts, as burning it releases carbon dioxide and other pollutants into the atmosphere. This has led to a growing interest in alternative fuels and more sustainable energy sources.