Of these options, the only one that was truly true of both the first and second industrial revolution is the "use of the assembly line" although the length of these lines varied.
Social scientists study people. For example: Anthropologists study human evolution and their culture. Physcholgists study people and the working of their mind!
D). Vast empires.
Classical civilizations developed vast empires, whereas early river valley civilizations did not.
<span>During the Middle Ages the primary purpose of Western art was to portray the spirit world, and the early art subjects were typically limited to religious (Pietistic) art. Art took form as mosaics, illuminated manuscripts, and paintings in churches.</span>
