What were some of the ways that African American fought slavery?

What was the 1787 constitutional convention? !

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

30 in 1566 the i belonged to spain. ii rebelled against spanish rule. iii was in independent country. iv was made up of both catholic and protestant provinces.