)ancient trade routes were a source of exchange of each of the following except ideas technology leaders animals

"The answer would be leaders."

Said me to myself and saw this so I decided to help :D

image result for what are some causes and effects of pontiac's rebellion?

the colonists were also expected to pay a tax to meet the costs of establishing and manning the borders of the proclamation line which led to the belief that the king had sided with the indians despite pontiac's rebellion, against the interests of the settlers. this contributed to the causes of the american revolution.