Which of the following describes Theodore Roosevelt's ideas about the role of the government? to keep the powerful from taking advantage of small business owners to help all citizens get rich and to take care of the lazy to break all company trusts because all big businesses wanted to bully the smaller ones to close off all wild lands and leave them untouched

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