At the yalta conference, significant concessions were made to the soviet union because a: roosevelt and churchill believed that stalin could be trusted b: the western allies wanted the u. s.s. r. to join the war against japan c: stalin threatened to withdraw from the war against germany d: the u. s.s. r. was reluctant to grant independence to the baltic states

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