Review the excerpt of the article you read
in at least two or three sentences, give three
examples olhardships and dangers the workers
faced.
done

it would have to be gasioline

answer; i believe the two groups were irish immigrants and chinese immigrants;

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!

(d). gave voting rights to free african americans and white women.