When we consider the brutality of the rwandan genocide, it seems almost inconceivable that archeological evidence points to a few larger geographical locations in east africa—the kenya rift valley and the olduvai gorge—as the origin of the vast majority of existing african ethnicities. this process of diffusing and relocating and then assuming a new, separate cultural identity is understood as
a. budding.
b. fissioning.
c. ethnogenesis.
d. origination.

ethnogenesis.

Explanation:

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.