I'm really confused on the ones i don't have cause we didn't do the lessons, we were just given 3 wirksheets

What refers to the distance between two sound frequencies or pitches?

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

What is the angular extent of an image captured by a camera called?