This is random but if you ask for help and somebody says it’s in the file DONT PRESS IT
The Columbian Exchange refers to the transfer of plants, animals, diseases, culture, and human populations across the Atlantic from the so-called Old World to the New World and vice-versa. The term was first coined in 1972 by Alfred W. Crosby in his book The Columbian Exchange . The title refers...
A positive effect of the Columbian exchange was the introduction of New World crops, such as potatoes and corn, to the Old World. A significant negative effect was the enslavement of African populations and the exchange of diseases between the Old and New Worlds.
<span>a. Immigration was discouraged to preserve the jobs of low-income Americans.
Because of the fact that african american and asian and really all immigrants that werent of white descent were deported. This was called the naturalization act of 1870</span>
During the Second Industrial Revolution, steel became one of the most important building materials in the world.