What layer of the atmosphere is closest to the earth?

More Questions:

Which country were the 1928 Summer Olympic Games held in?

What holiday is celebrated with an aluminum pole, the Airing of Grievances, and Feats of Strength?

What was the name of the man who invented the first commercially successful steel plow in 1837?

What category of writing are the Hugo Awards given for?

Which city in Tennessee is the country music capital?

Which two scientists first proposed that DNA is structured in a double helix?

What creatures does an ichthyologist study?

What tree gives us prunes?

What dancer from Omaha was born Fred Austerlitz?

What city was the setting of the TV show "Friends"?

What is the "Big Mac" that was built in Michigan in 1957?

St. Albans was the start and Bosworth field was the finish of what?

Who was married to Princess Anne in 1992?

What treaty ended the American Revolutionary War?

Which mythical creature has the body of a lion, a goat's head rising from its back and a snake's head at the tip of its tail?