Agood experiment does not need a control group true or false

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.

What problem made china reluctant to improve relations with the united states? apex answer

Which of the best following describes william jennings bryan’s learning experience