Which two of Earth's spheres interact when the rainfall in a region increases after a volcanic eruption? Biosphere and geosphere
Biosphere and hydrosphere
Geosphere and cryosphere
Geosphere and hydrosphere

i think i can answer even without the example. over time with environmental changes, sometimes a group of animals will adapt to better survive. take a moth for example. if the trees the moths use to camouflage themselves from predators, started to die or change colors themselves, the moths may, overtime of course, change color too. its just adapting to its surroundings. hope i was of any : )