Develop an argument that evaluates the extent to which the introduction of new transportation technologies or commercial practices affected the Silk Road trade networks compared to the trans-Saharan trade networks in the period 1200-1450

chlorofluorocarbons are released via: aerosol sprays and refrigerants.

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation:

they were citizens but they could not vote and they did could not get involved into a political situation during that time.