10. This pair of photographs suggests that the major purpose of the Carlisle Indian School was to A. train future leaders in tribal traditions
B. prepare children for life on the reservation
C. teach skills needed for working in factories
D. promote cultural assimilation

11. Homesteaders on the Great Plains found it necessary to build the type of house shown in the photograph because —
A. the ground was not stable enough to support heavier structures
B. unpredictable weather conditions required settlers to build shelter rapidly
C. access to timber was limited by distance and lack of transportation
D. settlers lacked the skill required to build more-permanent structures

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.

: it caused the roman empire to have a small and weak army.

advantages of joint stock companies. large financial resources: a joint stock company is able to collect a large amount of capital through contributions from a large number of people. in a public limited company, shares can be offered to the general public to raise capital.