The internal combustion engine was an innovation of a. guglielmo marconi b. thomas edison c. alexander graham bell d. jean lenoir e. gustav eiffel

The first commercially successful internal combustion engine was created by Étienne Lenoir. It was around 1859 that it happened. The first modern internal combustion engine, though, was created in 1876 by Nikolaus Otto.

But in the end, it was invention and innovation attributed to Jean Lenoir, who was Belgian inventor and self taught chemist. The development of the internal combustion engine happened back in 1858.

The answer is: D. Jean Lenoir

by 1890, the united states had by far the world's most productive economy. american industry produced twice as much as its closest competitor--britain. but the united states was not a great military or diplomatic power. its army numbered less than 30,000 troops, and its navy had only about 10,000 seamen. britain's army was five times the size of its american counterpart, and its navy was ten times bigger. the united states' military was small because the country was situated between two large oceans and was surrounded by weak or friendly nations. it faced no serious military threats and had little interest in asserting military power overseas.

the u.s. department of labor is a cabinet-level federal agency that supports the american labor force. it has three overall functions. first, it protects the rights of workers and retirees. second, it provides job training. third, it provides statistics related to working, prices, and income.