Question

How do I draw a diagram showing how ear defenders work?

Answer 1

http://www.google.com/search?q=ear+defenders+diagram&hl=en&tbo=u&tbm=isch&source=univ&sa=X&ei=VaCaUJPvAcqLywGdhYHYBw&ved=0CCsQsAQ&biw=711&bih=453

Answer 2

ear defenders work by putting them on ur head dummy!!-