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Earth Science and Geology
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Some 2.4 billion years ago
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 […]
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Some 3.3 billion years ago
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 […]
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Some 3.8 billion years ago
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 […]
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✓ NGC 5037, a truly Captivating Spiral Galaxy
✓ NGC 5037, a truly Captivating Spiral Galaxy