Pls, I really need help with this

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

So my science teacher said anything that makes noise can in a way make music, instruments make music, and mayonnaise makes sound. so i have a question, do not report. is mayonnaise a instrument?

Was prevalent in art in northwestern europe during the middle ages? a. geometric motifs b. abstraction c. pointillism d. animal style