Question

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?
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Answer 1

Ответ:

1.)in 1919

2.)plastic

3.) listening to music