What is the lowest layer of the Earth's atmosphere called?

More Questions:

In the novel "Lolita', who was Humbert Humbert obsessed with?

What's the capital of Comoros?

The Panama Canal connects the Gulf of Panama and which sea?

Mauritius is part of which continent?

Which US state is nicknamed the "Green Mountain State"?

Which country borders Kyrgystan to the east?

What flowers do florists often refer to as "mums"?

Dry Ice is the solid form of what chemical compound?

What do most lobsters and crayfish do with their shell after it has molted?

Who's responsible for "The Ballad of Billy the Kid"?

With which group would you associate the songs "Light My Fire" and "Hello I Love You"?

Which treaty ended the war between Germany and the Allied Powers in World War I?

At the beginning of the Spanish-American War, what island did American soldiers invade?

In 1911, what entrepreneur retired as president of Standard Oil?

What precious metal did alchemists call "luna"?