Why was the development of the steel industry necessary to the rise of skyscrapers? a. Steel could be carried by mass transit.
b. Steel was both inexpensive and strong.
c. Steel could be transported more easily than iron.
d. Steel was necessary to make elevators safe.

What was zheng he’s most important accomplishment? zheng he spread chinese ideas and brought wealth to china from his travels. zheng he commanded an impressive fleet of ships. zheng he sailed the indian ocean and around africa. zheng he conquered lands as far away as africa to increase the dynasty’s power.

Wilson was unsuccessful in making lasting changes regarding

The tuskegee institute offered training to african americans in business and finance industrial and agricultural skills medicine liberal arts