Answer:
Lenses don't affect compression at all. The only thing that affects compression is DISTANCE from subject.
The mnemonic for space notes in the treble clef is FACE (like the one on your head.) The bottommost space is F, the second one is A, and so on.
Reading the notes like so, we get A, then C, then E.
ACE would be your answer.
An interval is the interval between two pitches of the same name.
Answer:
I belive its C If im looking at the right question