Which was a leading factor in the failure of Radical Reconstruction in the late 1860s and early 1870s? A high levels of participation in politics by carpetbaggers and scalawags
B enforcement of the Fifteenth Amendment guareenting the Black vote
C development and spread of white terror organizations such as the Ku Klux Klan
D passage of the Ku Klux Klan Act of 1871

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal