The prebiotic atmosphere of the earth was of a reducing nature. It was transformed into a oxidising atmospehre of present day due to the emergence ofA. cyanobacteriaB. angiospermsC. photosynthetic protistsD. eukaryotic algae.

The prebiotic atmosphere of the earth was of a reducing nature. It was

1.	The prebiotic atmosphere of the earth was of a reducing nature. It was transformed into a oxidising atmospehre of present day due to the emergence ofA. cyanobacteriaB. angiospermsC. photosynthetic protistsD. eukaryotic algae.
Answer» Correct Answer - A The prebiotic atmosphere of the earth was of a reducing nature, i.e., no free oxygen was available. It was transformed into an oxidising atmosphere due to the emergence of cyanobacteria. They used water to get hydrogen and released oxygen into the atmosphere.

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The prebiotic atmosphere of the earth was of a reducing nature. It was transformed into a oxidising atmospehre of present day due to the emergence ofA. cyanobacteriaB. angiospermsC. photosynthetic protistsD. eukaryotic algae.

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