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

More Questions:

What is the Burmese word for "Mr."?

When was the game "Scrabble" first released?

When an entree is prepared "en brochette', how is it served?

Which rock group charted "Land of Confusion" in 1986?

Whose "Small House" is the subject of the play acted out during "The King and I"?

Which mountain range lies in the north of Spain, west of The Pyrenees?

Which US state is nicknamed the "Land of 10,000 Lakes"?

In what US state would you find Fort Knox?

What is a whale's leap out of the water called?

Both of TV's "Gilmore Girls" have what first name?

What is the name of Marty's band in the film "Back To The Future"?

Who was the 20th President of the US?

What city hosted the 1992 Summer Olympics?

Which US president lived in Shadow Lawn?

The song "Son of My Father" is credited as being the first number 1 UK hit to feature which instument?