What was the main reason so many Americans decided to pack up and move to the Oregon Territory?

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

Answer the following question in 3-4 complete sentences. explain the arizona highways leak and its outcome.

What issues are reporters presently working to expose and reform?