D chemistry
The answer is chemistry because you have to use materials and figure out ur angles along with ur hipothosis
The answer is C. a metronome is a device that produces a click at a regular interval of time, which helps figure out the beats.
Im pretty sure it's d. no traditional form
The Mass ordinary, or the Ordinarium parts of the Mass, is the set of texts of the Roman Rite Mass that are generally invariable. ... The Kyrie, Sanctus, and Agnus Dei are part of every Mass. Kyrie, Gloria, Credo, Sanctus and Agnus are often sung, by a choir if not by the whole congregation.
