ALIVE : DECEASED :: METROPOLIS :

1. wilderness
2. population
3. skyscraper
4. citizen

Alive and “deceased” are life-state antonyms. “Metropolis” (urban center) contrasts with “wilderness” (untamed land). “Population” and “skyscraper” are components of a metropolis. “Wilderness” provides the stark environmental opposition. So, ALIVE : DECEASED :: METROPOLIS : WILDERNESS