Which of the following contributed to the development of the trans-Saharan routes shown in the map? a. The rise of accessible river cities such as Timbuktu.
b. The arrival of desirable trade goods from the Red Sea.
c. Climate shifts that reduced desert vegetation coverage.
d. The spread of camels that could travel farther without water

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.

the correct answer is the movie industry

because thomas edison developed the kinetograph which allowed for cinema projections.