Which of these is not a reason commonly cited for the collapse of the Maya civilization

For most of the twentieth century, percentage of men had a college degree compared to women. however, if we focus on the data for americans born in or later, a higher percentage of women hold college degrees.

Who were the copperheads? a. a native american tribe that rose up during the war b. northern democrats opposed to the war c. ships that ran the union blockade d. an elite force of union soldiers in the west

On which point did william lloyd garrison and frederick douglass disagree?