Which of these are very common features in Islamic art

Explanation: Floral or vegetal designs

Geometric shapes and patterns

geometric designs and repeating patterns

Explanation:

Its geometric designs and repeating patterns because  they couldn't use pictures of animals and people so the don't wont people worship the wrong way.

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.

the answer to your question is,

old stone age.

-mabel < 3