:) t a k e t h e f r e e p t s :)

and also, forget me "leaving, here's 25/50 po. ints :)

The energy applied to cause vibration can be in the form of air pressure a stick, bow, or electricity. true or fasle

Igotta why is there only 2 semesters and 4 quarters and not 4semesters and 4 quarters? 1 quarter for each semester? ? is this a dumb question?

Sigmund freud had much to do with the belief that