Oxygen gas exists when humans have not yet appeared

According to geologists, the atmosphere of the Earth's atmosphere is formed about 2.48 to 2.32 billion years ago.

The group of international researchers who published their study in Nature said oxygen had existed about 2.48 billion years ago when they analyzed samples of iron ore from ancient Pilbara rocks in Australia.

GS. Mark Barley and his team found the evidence from the rock form that existed since prehistoric times, confirming the evidence of the early existence of oxygen since early human formation.

'This is evidence of the earliest form of life that survives through respiration. Bacteria survive on respiration with oxygen, producing copper-colored oxidizing minerals, while 'releasing' acid dissolving rocks and soil on the surface including chromium, then moving to the ocean by water flow. , GS. Barley said.

Oxygen gas already exists 2.48 billion years old.

Also according to GS. Barley, biologists and geologists are working hard to get the database as well as better evidence of when bacteria are involved in increasing the amount of oxygen in the air.

'We had a specific sample group from the formation of iron and analyzed chromium isotopes as well as other elements to give the most accurate proof of oxygen' , GS. Barley insisted.