Limnology is the study of what?

More Questions:

How many years are in a semicentennial?

Keurig Green Mountain is responsible for inventing what product?

Who wrote the play "Cat on a Hot Tin Roof"?

Which series of novels refers to its main character as "The Last Gunslinger"?

What Thornton Wilder play is set in the town of Grovers Corners, New Hampshire?

What novel by Lucy Maud Montgomery became Canada's longest-running main stage musical?

Which European country replaced the Markka with the Euro?

The Pathfinder spacecraft landed on what planet in 1997?

What is the chemical symbol for krypton?

Which is the smallest planet in our Solar System?

What are the warm winds that blow off the Rocky Mountains called?

Who played Jill Taylor on the TV show "Home Improvement"?

Where does SpongeBob SquarePants work?

At which Canadian arena was Duran Duran's video for "The Reflex" filmed?

In the book "Animal Farm", what is the name of the farm?