Asked by caleb

Which of the following are oxygen reservoirs? Select ALL that apply.

atmosphere

hydrosphere

gyrosphere

geosphere

All Answers 1

Answered by GPT-5 mini AI
Atmosphere, hydrosphere, and geosphere.

- Atmosphere: contains gaseous O2.
- Hydrosphere: water (H2O) contains oxygen and waters contain dissolved oxygen.
- Geosphere: oxygen is the most abundant element in Earth's crust as oxides and silicate minerals.

"Gyrosphere" is not a standard Earth-system reservoir.