Why do instructors join the students inside the altitude chamber

The north had all of the following advantages over the south, excepta expansive industry to maintain their economyb. a large number of educated professional officers and soldiersc. a strong central governmentd. control over the major trade routes select the best answer from the choices provided

How did the mali empire come to an end? a. rulers lost control of gao. b. they were conquered by axum. c. ghana took over their territory. d. sundiata was captured by mansa musa brainliest!

Which technological breakthrough of the 1950s revolutionized the way that americans kept up with news and world events? a) radio b) internet c) television d) motion pictures