Answer: a treaty between two or more countries to make trade easier and to destroy trade barriers
Answer: The yellow river is located at (LETTER B) The structure built to keep out the northern barbarians was called the (Great Wall) and is located at (LETTER C) The Silk Road is located at (LETTER A)
Explanation:
Answer: Hoboes- was the name of person who were homeless and traveled along rail lines hopping on trains.
Advantages—abundant natural resources, a stable government with relatively lax regulations, and a large workforce—made it the dominant industrial power by the 20th century.