Answer:
The calendar
Explanation:
The egyptians invented the calendar so that they could know when the Nile would flood. I know I' m very late on this but I just want to help :)
The purpose of the watchdog role is to watch over the activities of a specifical part of the government and to report problems or illegal acts. It could be a person alone, a group or a committee. It also exists in private practice, as to avoid that a company acts wrong or against the laws and regulations.
Answer:
the concept of eradication
