-. The ancient Egyptians devised (created) a very accurate yearly calendar of 365 days. Why would an ancient civilization need such
an accurate calendar?

they needed an acurate calender to tell the date

Explanation:

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.