Alliances are possibly the best known cause of World War I. An alliance is a formal political, military or economic agreement between two or more nations. Military alliances ...........
Answer:
revolution transformed economics that has been based on agriculture and handicrafts into economics based on large scale industry manufacturing and the factory system new machines new power new shoes and new waste organism industries for productive and efficient
Answer: the rebuilding of the Great Wall
At that time, the Chinese citizens had to face constant threats from the barbarian that resided on the northern part of their territory.The previously built wall was not strong enough and able to be destroyed by the invaders. Ming Dynasty took the credit of rebuilding and strengthening the structure of the great wall.
You got food and water, you could sell your things, or tradeI hope this helps! :)