What classification of rock covers approximately 75% of the Earth's surface?

More Questions:

Which MLB player lead the American league in home runs in 2010 and 2011

In what country does Santa typically sport a long coat and beard?

The organization PETA stands for "People for" what?

What John Irving novel with an armadillo on its cover tells the story of an extremely short boy?

What major river runs through Cleveland?

What early rock pioneer once told an unresponsive audience, "I hope you all get heart attacks"?

What 1981 thriller opens with the discovery of three faceless corpses at an amusement park in Russia?

What Christmas single has the biggest sales of all time?

What female dog is the secret object of Underdog’s affection?

What actor starred in the movies "The Forbidden Kingdom', "Lethal Weapon 4', and "Cradle 2 the Grave"?

What was singer George Jones" animal nickname?

What was the name of the doorman at Rick's in the movie "Casablanca"?

Taking advantage of a fad at the time, what song became a #1 hit for Ray Stevens in 1974?

What city was Rafael Trujillo killed in?

What is Bugs Bunny’s catch phrase?