TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: MEN OF SCIENCE 
Clue: On a scale of 1 to 10, his "Earthquakes" article for the 15th edition of Encyclopedia Britannica was a 10

SOLUTION: richter

PROBLEM: Category: THE QUOTABLE MAO 
Clue: "All reactionaries are paper" these animals

SOLUTION: tigers

PROBLEM: Category: SHIPS 
Clue: A space shuttle was named for this ship seen here, Woods Hole Oceanographic Institution's first vessel

SOLUTION:
the atlantis