Soluzione del esercizio 31 di Performer B1, Vol. 2

Esercizi svolti per il libro Performer B1, Vol. 2

Soluzione

  • Kind of plane: Boeing 747.
  • Travelling from: Orlando.
  • Landed at: London Gatwick.
  • Flight's energy source: a new blend of normal jet fuel and ethanol produced from waste gases.
  • Fuel blend's impact: 5% recycled, but the sustainable element could increase up to 50%.
  • Airline founder: Sir Richard Branson.