Approximately, how far is the Earth's ozone layer from its surface?

More Questions:

What horse set a Kentucky Derby record in 1973?

What plant does the Boll Weevil destroy?

Which of Santa's reindeer is named for a female fox?

In French, what cooking term means "to slice into thin strips"?

Who was the principal of Riverdale High School in the "Archie" comics?

In what part of the former Soviet Union did the Chernobyl nuclear disaster occur?

What is April's birthstone?

By what name is Lignite often referred to as?

For what 1993 movie did Anna Paquin win an Academy Award?

What famous fashion designer did Rachel begin working for in Season 5 of the TV show "Friends"?

What male actor plays the lead role in the 2005 movie "The Island"?

The singer Shakira comes from what country?

What movie features the line: "You can't handle the truth"?

What general commanded the US military operations in the Vietnam War from 1964 to 1968?

What became the tallest building in London after its official opening in October 1965?