D.
it's D because it's coming from a person that was there. A primary source comes from a person involved, saw it or was there
Benjamin Franklin invented the bifocals in 1784.
The correct answer is <u><em>placer mining</em></u>
Hope This helps!!!
Answer:
It has <u>Presidential Coat of Arms</u> on the back
Answer:
A
Explanation:
Because immigrants were unskilled and didn’t need skill for jobs in the factories