Answer: D) Companies replaced hand-operated brakes with air brakes on trains.
Answer: A policy of remaining apart from the affairs or interests of other groups, especially the political affairs of other countries.
Explanation:
The introduction of the "horse" to North America drastically changed the lives of many American Indians, in that the horse was an incredibly valuable mode of transportation.
The first superintendent of Louisiana State University was "Col. W.T. Sherman," since this was when the institution was first established, and many thought that his leadership would have the most impact.
Belarus, cambodia, Cameroon, chad, china, cuba, Egypt, Equatorial Guinea, eritera, Ethiopia, iran, lyiba, Madagascar, Myanmar, north korea, Rwanda, sudan, Syria, Tunisia, Turkmenistan, Uzbekistan, Vietnam ,and Zimbabwe
