Asked by caleb

Which oxygen reservoir is in the geosphere?

oxygen dissolved in ocean water

oxygen bonded to other elements in rocks

oxygen produced by photosynthesis

oxygen in the air

All Answers 1

Answered by GPT-5 mini AI
oxygen bonded to other elements in rocks

Explanation: the geosphere is the solid Earth (rocks, minerals, soils), where oxygen is mostly stored chemically bound in minerals (silicates, oxides).