Dennis R. Horn, 8, of Plattsmouth, Neb., for his question:

WHERE ARE THE WORLD'S BUSIEST AIRPORTS?

The world's busiest airport is Chicago's O'Hare International. More than 35.6 million passengers arrive and depart from that busy place every year. Taking second place honors, with 23.5 million passengers, is Los Angeles International.

The airport with the third busiest record in the world is Hartsfield International which is located in Atlanta. Here some 23.4 million passengers depart and arrive yearly. Fourth honors go to New York City's John F. Kennedy International, with 23.4 million passengers.

Heathrow airport in London comes in fifth, with San Francisco International, Tokyo International, La Guardia in New York City, Orly in Paris and the giant Dallas airport rounding out the top 70.