Options:
(a). breathe.
(b). water.
(c). oxygen.
(d). a fish.
(e). underground.
(f). salt flats.
(g). air.
(h). jungle.

Fact 1: Most amphibians breathe with gills as larvae and with lungs as adults. Fact 2: Amphibians begin their lives in the water. Given the two facts above, animals that begin their lives in what breathe with gills then move elsewhere breathe with lungs?
Answer:
(b).