The runners in the picture below have just started a race. they started at rest and are getting faster.

what statement best describes the motion of the runners at the beginning of the race?

Where is the Picture?

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

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.