Which best explains the development of swahili culture along the east coast of africa

Why was charles townshend’s development of a crop rotation system important to the industrial revolution

What is the name of the first president

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