The principle of recognizes the need for the elements you use to connect or relate to each other.

The answer is unity, this recognizes the need for the elements you use to connect or relate to each other. The use of unity is to make elements in a composition appear to belong together. When each elements has a clear visual relationship to one or more other elements, the composition is unified. A design evokes a sense of quality and organization.

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.