Which fossil fuel has the most significant influence on human transportation over the last century

Answer 1

Petroleum (crude oil) has had the most significant influence on human transportation over the last century. It is the primary source of fuel for cars, trucks, airplanes, ships, and trains, powering the majority of the world's transportation vehicles. The development of the petroleum industry has allowed for the mass production and affordability of gasoline, diesel, and jet fuel, enabling individuals and goods to travel further and faster than ever before. The widespread use of petroleum-based fuels has revolutionized the way people commute, travel, and conduct business, making it the most important fossil fuel in the transportation sector.