Answer: practice
Explanation:
Practice effect could be defined as focusing on and carrying out an act repeatedly based on feedback of the previous till the practice improves.
Several practise can influence the result of an analysis, when a practice is carried out often, there is tendency that the result won't turn out the same, especially when done over some handful number of times, this is what describes a practise effect, and what the researchers realized from the report.
A Fertile Crescent, which is a crescent-shaped region that contains very
fertile land around the Tigris and Euphrates Rivers, parts of Asia
Minor, and the Nile River regions.
B. all people must obey the law no matter their position.