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The changes in ocean chemistry were gradual. The Archaean period lasted 1.5 billion years. This is more than half of Earth’s ...
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The Earth's oceans used to be green — and could one day turn purple, scientists sayIt will lead to more purple, brown, or green hues in coastal or stratified areas, with less deep blue color in water as ...
The Archaean eon was a time when Earth's atmosphere ... This may favor purple sulphur bacteria living in deep waters without oxygen. It will lead to more purple, brown, or green hues in coastal ...
The Archaean eon was a time when Earth's atmosphere ... This may favour purple sulphur bacteria living in deep waters without oxygen. It will lead to more purple, brown, or green hues in coastal ...
The Archaean eon was a time when Earth's atmosphere ... This may favour purple sulphur bacteria living in deep waters without oxygen. It will lead to more purple, brown, or green hues in coastal ...
In the Archaean eon, the ancestors of modern blue-green ... This may favour purple sulphur bacteria living in deep waters without oxygen. It will lead to more purple, brown, or green hues in ...
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