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Oceans on Earth may have all been green for eons before they turned blue

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Summary
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84% Informative

According to new research, Earth may have had green oceans for billions of years before they finally took on their familiar blue hue.

Scientists believe that sometime between 3 billion and 600 million years ago, Earth ’s oceans had a very different appearance.

During this period, cyanobacteria , the first photosynthetic organisms on Earth , began to evolve in these iron-rich waters.

Unlike modern plants, which mainly use chlorophyll to absorb blue and red light, early cyanob bacteria developed special pigments called phycobilins.

VR Score

89

Informative language

89

Neutral language

62

Article tone

informal

Language

English

Language complexity

51

Offensive language

not offensive

Hate speech

not hateful

Attention-grabbing headline

not detected

Known propaganda techniques

not detected

Time-value

long-living

Source diversity

2

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