Respuesta :
Answer:
The most appropriate answer would be option D.
The first life appeared on earth was probably the prokaryotes. Some of them called cyanobacteria discovered the process of harnessing energy from the sun, that is, photosynthesis.
The oxygen was released as the byproduct of the process.
Consequently, the oxygen started accumulating in the oceans which were used to oxidize the iron present in the ocean. It led to the formation of iron oxide deposits in the ocean.
Once the whole iron was oxidized, the free oxygen started accumulating in the atmosphere.
Ultimately, it converted the anoxic atmosphere into the oxygen-rich atmosphere.
The study of the atmosphere is called metrology. There are two different types of layers in the atmosphere and these layers are troposphere and stratosphere etc.
The correct answer to the question is option D that is more oxygen gas became present in the atmosphere.
What is the atmosphere?
An atmosphere is a layer of gas or layers of gases that envelope a planet and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low.
The first life that appeared on earth was probably the prokaryotes. Some of them called cyanobacteria discovered the process of harnessing energy from the sun, that is, photosynthesis. The oxygen was released as the byproduct of the process. Consequently, the oxygen started accumulating in the oceans which were used to oxidize the iron present in the ocean.
It led to the formation of iron oxide deposits in the ocean. Once the whole iron was oxidized, the free oxygen started accumulating in the atmosphere. Ultimately, it converted the anoxic atmosphere into an oxygen-rich atmosphere.
Hence, the correct answer is option D.
For more information about the atmosphere, refer to the link:-https://brainly.com/question/16566688
