Help 4 federal system questions ASAP

Which statement best summarizes the content of the speech that victor gives walton’s crew when they want to return home he criticizes them for being cowardly and disrespectful to their captain’s dreams.

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

Define what the expropriation without compensation's and what does the freedom charter says about it