How old do you think the artist of this sketch is? (need more then one opinion)
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What is the purpose of the outer ear? a. to convert mechanical waves into electrical waves b. to evaluate the quality of sound c. to convert sound waves into mechanical waves d. to collect and focus sound waves

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

Iconography refers to meaning of the symbols and images in art. iconology is the study of imagery in terms of broader cultural and artistic content in art.