What keeps the Earth's atmosphere from leaving the planet?

More Questions:

Which world champion was beaten by a machine called Deep Blue in 1997?

Which New York newspaper wrote "yes Virginia, there is a Santa Claus"?

What British comedian refers to himself as an "executive transvestite"?

How many neighbors does Lesotho have?

Which US state was named after the King of France?

By what more common name is the star cluster, Pleiades, better known as?

What does a meteorologist study?

What sport is the focus of the movie "Cool Runnings"?

Who played the Bishop in the 1947 film "The Bishop's Wife"?

What kind of animals are "Pinky and the Brain"?

In the TV show "The Simpsons', what is the name of the restaurant Homer competed in a beef eating contest?

What character did Bill Cosby play on his TV show "The Cosby Show"?

Who did Michael Caine play in the 1965 film "The Ipcress File"?

When was the film "Who Framed Roger Rabbit" released?

Which Asian country has the calling code 82?