Soluzione del esercizio 1 di Performer B1, Vol. 2

Esercizi svolti per il libro Performer B1, Vol. 2

Soluzione

  1. carbon dioxide / exhaust fumes / pollution
  2. atmosphere
  3. endangered species / endangered
  4. global warming
  5. climate change
  6. source of renewable energy / source of energy
  7. ecosystem
  8. greenhouse effect
  9. deforestation