What are the four layers of the rainforest?

More Questions:

What magazine began publishing its annual list of the 500 most-successful companies in the US in 1955?

To determine the percentage of alcohol in a bottle of liquor, what is divided by two?

Who wrote "Slaughterhouse Five"?

Ghana is located along which gulf?

What is the capital of the state of South Australia?

What California peak, which erupted in 1915, is the world's largest lava dome?

What is it that turns blue litmus paper red?

What color is soapstone when it is first mined?

Which element of the periodic table is named for a Scottish village?

What is the hardest known naturally occurring mineral?

What country was the setting for the 2009 movie "The Hurt Locker"?

In which movie did Bette Midler portray a witch?

What sci-fi movie featured David Bowie and Rip Torn?

Fred Astaire's character in "Funny Face" was based on what fashion photographer?

Who resigned as US president in 1974?