Alternative fuels are energy sources that can replace traditional fossil fuels like gasoline and diesel. These fuels are often more environmentally friendly and can help reduce pollution and greenhouse gas emissions. Common examples include biofuels, electricity, and hydrogen. By using alternative fuels, we can decrease our reliance on oil and promote sustainable energy practices. Many vehicles are now designed to run on alternative fuels, making it easier for consumers to choose greener options. For instance, electric cars use batteries instead of gasoline, while flex-fuel vehicles can operate on a mix of gasoline and ethanol. Embracing these alternatives can lead to a cleaner, healthier planet.