Unlike ancient Mesopotamia, ancient Egypt Select one:
a. did not employ an effective method of irrigation
b. worshipped many gods
c. lacked a coherent writing system
d. retained unified through much of its history

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.

continental currency was denominated in dollars from $​1⁄6 to $80, including many odd denominations in between.