How did president harry truman reduce discrimination in 1948

Why do you think the nazis gave ration cards out to jews in the ghetto?

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

What race did the soviets win in 1957?