1. Widespread violence erupted in Kansa over slavery in the mid 1850s mainly due to...

a- the Pottawatomie Massacre

b- the Missouri Compromise

c- the practice of popular sovereignty

d- the threat of secession

Widespread violence erupted in Kansas over slavery in the mid-1850s mainly due to the practice of popular sovereignty The Kansas-Nebraska Act of 1854 led to all of the following except.

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C.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.