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This is a Clilstore unit. You can link all words to dictionaries.

2.1.-Introduction (4).The inventors of the blue LED win the Nobel Prize

 Exercise 6. After reading the article about the invention of Blue LEDs, answer the following questions in your workbook

1.- Could you write two applications of blue LEDs?

2.- What material are blue LEDs made?

3.- Why is this invent so important?

4.- In what decade was it invented?

5.- Who are the inventors?

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