1) What is the word for the fear of heights?
a) Vertigo b) Acrophobia c) Impetigo
The fear of heights is called acrophobia (from the Greek Akros, ‘highest’). Reactions include clinging, crouching, or crawling on all fours as well as sweating, shaking and palpitations. Vertigo on the other hand is a type of dizziness where sufferers feel they are moving when they are in fact stationary. Up to 10 per cent of people experience some form of vertigo in their lives.
2) Which is the busiest airport in the world (based on the number of passengers in 2009)?
Atlanta, Hartsfield in the USA is the busiest airport in the world. In 2009, it saw 87.7 million passengers arriving and departing. London Heathrow in the United Kingdom is second with 66 million passengers and on third place is Bejing in China with 65.7 million passengers.

