What does "E10" mean in relation to gasoline?

Answer: B — It contains 10% ethanol and 90% gasoline

The term "E10" refers to a blend of gasoline that contains 10% ethanol and 90% gasoline. This type of fuel is commonly used in many areas due to its potential environmental benefits, such as reducing greenhouse gas emissions and reliance on fossil fuels. Ethanol is a renewable fuel made from plant materials, and incorporating it into gasoline can help reduce the overall carbon footprint of fuel consumption. Using E10 is compatible with most gasoline engines, but it’s important to check whether a specific vehicle is designed to operate effectively with this blend. The designation "E10" signifies that 10% of the fuel's volume is ethanol, which can assist in improving air quality and promoting sustainable energy sources. The other options do not accurately define E10, as the correct answer encapsulates the specific ethanol content in the fuel blend.