Why 20th century is an era of varied musical styles?

Examine the piece above. what is the subject matter in this piece? what is the content?

The protects the ear, collects sounds, and channels them to the middle ear a middle ear b ear drum' c front ear d outer ear

Why do you think there is so much controversy over whether figures are allowed in islamic art? some say they are as long as it is not idolatry, while others say it is prohibited? what is your opinion on the subject? explain your answer.