People show only one emotion on their face at a time. true or false

False

Explanation:

Humans are particularly skilled at reflecting their emotional and mental states on their face. These facial expressions allow us to understand each other and live peacefully within a community. However, these facial expressions are not always easy to understand. Moreover, people can display different emotions on their face at a time.

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.

i honestly have no idea