Please help with mark brainliest due soon

1-Infectious Eurasian diseases (For example: Smallpox)

2-Attempts of assimilation (and Manifest Destiny)

3-Relocation attempt (Indian Removal Act of 1830)

4-Diminished food supply for nomadic tribes

5-The introduction of horses and other animals to the new world (through the Columbian Exchange)

there are two main types of historical sources: primary sources and secondary sources. a primary source is something that originates from the past. it can be a chronicle, a piece of pottery, or even a piece of glacial ice that gives us climate data about the levels of atmospheric carbon one thousand years ago.

do u have choices or