Which was a cause for world war 1
a. political revolutions in europe left nations unstable.

b. russia's race to industrialize threatened the economy of other european countries.

c. the second industrial revolution led to international rivalries.

d. europe's system of military alliances enlarged small conflicts.

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.

Which best describes the impact of the crusades on european exploration?

Which fundamental right is protected in this excerpt ?