What are ways american farming changed in the late 1800s

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

In november 1947, how did the united states try and resolve the issue of palestine?

In what part of the shang kingdom was anyang found?