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1. What are two examples of public transport?
2. Why are CFC gases dangerous?
3. What kinds of things do you think you can do on a working day?
4. What things can you put in recycling banks?
5. What are four ways of producing electricity?
6. What things make air quality worse?


Răspuns :

1. train, subway
2. because they are toxic
3. work
4. bottles, paper
5. lightning, sun, water, wind
6. poluting