What obstacles did builders of the two railroads

have to face?

Workers worked on the continental railroad for very long hours and got very little money. They also didnt eat much, they only ate one time during their work hours. Like the Asians. They were willing to work hard and get less money, very hardworking.

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harsh winters with deep snow

supply shortages

conflict with American Indians

scarcity of water

Explanation:

got it right on 3dg3nuity

the next question it asks the answer it "Equipment, rails, food, and even water had to be shipped long distances."