Correct Answer: Warren Edward Buffett(USA), chairman of Berkshire Hathaway, is the world's richest investor, estimated to be worth $535 billion as of march 2013
Correct Answer: Neza-Chalco-Itza is one of Mexico City's barrios(slums) Most of its approximately four million inhabitants live there illegally Mexico City's slums have been growing for more than 100 years, after the railways allowed new industry to beign in the city
5. The Busiest Metro Station in the world _________