6. What is the population of France?
- 65 million
- 50 million
- 75 million
- 45 million
7. CO2 emissions per unit of traffic have reduced by how much over the last 20 years?
- 30%
- 20%
- 40%
- 70%
8. What percentage of aeroplane tickets are aeroplane taxes?
- 40%
- 10%
- 50%
- 20%
