Researchers William Marmie and Alice Healy (2004) asked participants to study an unfamiliar coin for short periods of time, ranging from 15 seconds to 60 seconds. The results showed that participants were better able to remember details of the unfamiliar coin than the familiar U. S. penny. This finding confirmed that one of the most common reasons for forgetting is:

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.

answer; ewing's sarcoma;

answer; a team- maintenance role;

answer; decoy;