У нас СОЧ! Part 1.Read the article again and give answers to the questions. Writenomorethan THREE WORDS or A NUMBER 1. How does the ozone layer protect the Earth?
2. Why does the protective ability of the ozone layer get weaker?
3. When was the Montreal Protocol signed?

Part 2. Read definition of the word from the text. Write it in the given place.

4. a natural process that warms the Earth's surface is a
5. a pale blue gas or trioxygen is
6. NASA is a

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