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

Why was "impressment" an important issue during the jefferson administration? the united states was being treated disrespectfully, as the spanish navy was forcing american sailors into naval service for them. the united states was being treated disrespectfully, as the french navy was forcing american sailors into naval service for them. the united states was treating british navy with disrespect by forcing british sailors into naval service for them. the united states was being treated with disrespect on the high seas, as the british navy was forcing american sailors off their ships and into naval service for them. the united states was treating french navy with disrespect by forcing french sailors into naval service for them.