6. How many 'low-carbon zones' does London plan to introduce?
- 7
- 10
- 8
- 9
7. What is the population growth per day of Lagos?
- 400
- 100
- 1,000
- 800
8. The population of London is roughly:
- 10.1M
- 8.2M
- 7,9M
- 8,8M
9. The area of Los Angeles is roughly:
- 14,000km2
- 3,000km2
- 20,000km2
- 18,000km2