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Question
To which of the following the oldest fossils belong?
To which of the following the oldest fossils belong?
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Solution
The correct option is B Blue green algae
The cyanobacteria have an extensive fossil record. The oldest known fossils, in fact, are cyanobacteria (blue green algae) from Archaean rocks of western Australia, dated 3.5 billion years old. This may be somewhat surprising, since the oldest rocks are only a little older 3.8 billion years old. Thus, option C is correct.
The cyanobacteria have an extensive fossil record. The oldest known fossils, in fact, are cyanobacteria (blue green algae) from Archaean rocks of western Australia, dated 3.5 billion years old. This may be somewhat surprising, since the oldest rocks are only a little older 3.8 billion years old. Thus, option C is correct.
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