Answer:
I believe that it was steam powered.
Explanation:
Development started as early as the 17th century with the invention of the first steam-powered vehicle, which led to the creation of the first steam-powered automobile capable of human transportation, built by Nicolas-Joseph Cugnot in 1769.
There are many of them but the most common are:
1.) Photosynthesis
2.) Solar Energy
3.)Thermochemical Reactions
Hitler Violated the Treaty of Versailles.
Hope this helps ^^