Which process provides most of the oxygen found
in earth's atmosphere?

The process responsible for producing most of the Earth's oxygen is known as photosynthesis

Explanation:

In this process, plants and certain other organisms convert sunlight into oxygen and other products.

answer is a

explanation:

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.