PLEASE HELP ILL GIVE & HEARTS which of the following was a development of the transportation Revolution of the mid-1800s? A ) Automobiles
B ) Wind-Powered boats
C ) Diesel Freighters
D ) Steam-Powered trains

Steam-powered trains.

Explanation: Railroads provided the most dramatic transportation growth during the 1800s. They facilitated the movement of people, goods, and information, decreased shipping costs and time, and strengthened the links between the Old Northwest and the East.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

answer; /// i do believe that its napolean's conquest of spain;