Answer:
air pollution from more and more factories and the factories put chemicals into the water source
Explanation:
I think the answer would be a "Mixed Economy."
The Great Migration was the relocation of more than 6 million African Americans from the rural South to the cities of the North, Midwest and West from about 1916 to 1970.
Answer:
orally; by word of mouth
Explanation:
this was before writing was invented. this method often leads to the story change over time.