What geographic situation allowed the ottoman empire to become one of the great trade centers of the world

The Ottoman empire began at the beginning of the 1300 century and traded with countries from Algeria all the way to Russia. The empire's location in the region of Turkey, at the border of Europe and Asia was instrumental in facilitating the empire's success in trade. At the height of the empire they controlled south eastern Europe to the gates of Vienna and portions of the Middle east.

A steamboat is a boat propelled by steam. In the 19th century, steamboat was widely used on rivers, especially on the Mississipi and its tributaries. Inicially they worked only on lakes and rivers, but later the steam was also applied to larger vessels that crossed oceans. The building of canals was very important for the economy in the United States, by reducing the prices of transportation of products from or to distant places.

Answer B. People began to build canals in the USA and Europe.