What were 2 motives for African Americans buying slaves?

What was the final spark that ignited the “european powder keg” and started world war 1

*remember there is more than one correct answer* choose each response below that correctly describes what took place after the passage of the american recovery and reinvestment act (arra). check all of the boxes that apply. 1) the federal budget became balanced. 2) the gross domestic product grew. 3) the housing market rebounded completely. 4) unemployment continued to grow. 5) the federal deficit continued to rise.

Why fid mao start the cultural revolution