What is the largest ethnic group in eastern europe? magyar roma slavic turk

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  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.

we need an attachment to see what you are talking about.

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.