Uncategorized

  Around 2.4 billion years ago,cyanobacteria evolved to become our planet”s first photosynthesizers. Finally , we had some oxygen producers, to make Earth”S atmosphere much […]

3.3BILLION YEARS AGO  Earth didnt stay as a water world very long. Soon , the very first continents emerged from the ancient oceans. Scientits call […]

3.8 billion years ago  On this hot early Earth , there were no oceans. All water existed as gas.But 3.8 billion years ago , our […]