Question

4 Read and answer.
Inventor: Nathaniel Baldwin
Invention: headphones
Year: 1910
Made of: plastic
Used for: listening to music
0 Who invented headphones?
Nathaniel Baldwin invented headphones.
1 When did he invent them?
2 What are they made of?
3 What are they used for?​

Answer 1

1)1919
2)plastic
3)used for listen music
Неуверено что правильно