The answer is D, because after the relatively peaceful and philosophical Spring and Autumn period, various states were at war before the Qin state conquered them all, and China was reunited under the Qin Dynasty.
The one that did not contribute to the spread of the Great Depression in Europe is : C. Europeans invested heavily in railroads
Technically, the railroad building opened a lot of job opportunities for the people and helped during the depression
The answer is. the construction of Panama canal
Answer: Economic resources are the factors used in producing goods or providing services.Economic resources can be divided into human resources, such as labor and management, and nonhuman resources, such as land, capital goods, financial resources, and technology