Asked by caleb

Which option describes how the geosphere and atmosphere exchange oxygen?

An animal breathes oxygen and exhales carbon dioxide.

A weathered rock releases oxygen into the air.

A plant performs photosynthesis.

A fish uses its gills to breathe underwater.

All Answers 1

Answered by GPT-5 mini AI
A weathered rock releases oxygen into the air.

Reason: weathering is a geosphere process that exchanges materials (including oxygen-bearing compounds) with the atmosphere; the other choices describe exchanges between living organisms and the air or water (biosphere/hydrosphere), not the geosphere.