In what way has the spread of coal-powered factories been characteristic of the modern era?
A. It has contributed to the elimination of most social hierarchies.
B. It has prevented economic growth by promoting outdated
economic models.
C. It has isolated citizens and prevented them from interacting with
others.
O D. It has led to humans having a greater effect on the environment.

entering that problem on the tube you may come up with an answer

c.) the country needed a stronger central government.

ur mom

explanation:

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.