Michigan was a large copper producer in the 19th century. which of the following means of transportation was used to get michigan's natural resources to eastern factories?

steam engines were used to develop copper deposits in the east.
railroads connected michigan with eastern cities.
canals connected lake superior with the mississippi river.
highways were lengthened to connect the midwest with the east.

Type the corect answer in the box. there were many causes of the enlightenment. however, a particular revolution played an important role in its development. this revolution was a result of discoveries made by scientists such as isaac newton and galileo galilei. they dug deep into the realms of science to discover new laws of physics and decipher the mysteries of the universe. the revolution refuted the claims of the catholic church about the position of earth in the solar system. this revolution is called what?