Layers of soil are known as what?

More Questions:

Which car company produced a model named the Celica?

Who was the number 1 ranked male tennis player the most years during the 1970’s?

On what non-Nintendo console can you find "The Legend of Zelda" games?

What song, first used by FDR, has since become the unofficial theme song of the US Democratic party?

Which sci-fi author is credited with coining the term "cyberspace"?

Who revealed he was HIV-positive in his 1995 autobiography "Breaking the Surface"?

What is the capital of Syria?

How many equal sides are there on a scalene triangle?

What were the nicknames of the Salt-N-Pepa members?

What actor plays the role of Evan Treborn in the movie "The Butterfly Effect"?

Who played the role of Elaine in the 1982 film "48 Hrs."?

In The Simpsons episode, "Bart of Darkness," what does Bart break?

Which country, that ceased to be a US territory in 1946, celebrates July 4 as its "Republic Day"?

What does the RIP stand for in Latin?

Central African Republic shares its western border with which country?