What effect did europeans have on natives of the americas? (select all that apply) a. europeans promoted local leaders to establish empires in order to enslave local natives for agricultural pursuits. b. europeans established trade agreements with local native leaders that led to economic growth in the americas. c. europeans brought diseases that wiped out a majority of native populations. d. europeans drained natural resources from the americas that would go toward funding their further explorations. e. europeans brought technologies, ideas, plants and animals that were new to america and would transform people lives.