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.

[Q]: Category: FULL "MOON" 
Clue: Mercer & Mancini composed this 1961 classic
[A]: "moon river"


[Q]: Category: "E" BAY 
Clue: Thinking green, biologist Ernst Haeckel coined this term for the way animals interact with the environment
[A]: ecology


[Q]: Category: AIRPORTS 
Clue: This city's airport terminal building has a white fabric roof formed into peaks to resemble the snow-capped Rockies nearby
[A]:
denver