Which of these is an accurate description of the gupta empire in ancient india? a) they defeated alexander the great to unify all of india. b) they conquered the maurya empire using chinese war techniques. c) they came to power because of the disruption caused by the mongols. d) they were known for their religious tolerance, active trade, and great wealth.

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