Which option distinguishes the barn structure that would best compensate for lack of electricity?

a barn with no windows and a dirt floor
a barn with the windows facing the east
a barn with the windows facing the south
a barn with no windows and a concrete floorplan

The people of mozambique and zimbabwe would be most likely to be affected by a change in flow of which of these rivers? a) congo b) niger c) nile d) zambezi

Which of these best describes the function of a "super pac"? a)create bi-partisan legislation that can become law b)organization meant to reign-in spending of political candidates during election cycles c)promote the interests of supreme court justices without breaking specific tampering laws d)raise funds through donations from corporations or individuals to support or oppose specific political candidates

Roman builders used rows of arches in there buildings to form a curved ceiling called what