Which robber baron became one of the richest people in the world by investing in the shipping and railroad industries

Ineed to write an essay about harriet tubman

One of galileo’s contributions to science was a creating the coordinate plane system. b developing the scientific method. c improving the telescope. d inventing the astrolabe.

What was the most significant result of the opium wars? a. china’s navy was exposed as incompetent. b. china could no longer impose tariffs. c. they increased britain’s influence in china. d. they decreased europe’s influence in china.