“Occasionally a line of gray (train) cars crawls along an in invisible (train) track…’ what am I gonna to draw

Which of the following is necessary to build a skyscraper? a. wooden beams b. metal beams c. plastic supports d. all of the above

In areas where even the experts disagree; everyone has a right to his own opinion. i mean if answers aren’t given just like in lots of things; then it has to be just anyone’s opinion. is this dualism multiplicity relativism or commitment

Which style of polyphony uses a borrowed chant and arranges several new melodies and texts above and unrelated to the chant?