In which modern country was the olmec civilization located? mexico united states brazil peru

Which phrase best described sir isaac newton's contributions to modern science and therefore to the industrial revolution?

How would europe benefit economically from greater unity

How did the technology of the late 1800s affect the growth of cities? select one: a. cities were able to expand outward because of additions to railroads. b. electric streetcars enabled the wealthy city dwellers to move to the first suburbs. c. advances in steel and metal technology allowed for the development of the skyscraper, which allowed cities to grow upwards. d. all of these are correct.