Cyanobacteria originated about how many years ago?

1 billion

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2 billion

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3 billion

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4 billion

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Solution

The correct option is C 3 billion
Cyanobacteria was first microbes that produced oxygen by photosynthesis around 2.5 - 3.5 billion years ago on earth.

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Cyanobacteria originated about how many years ago?

The correct option is C 3 billionCyanobacteria was first microbes that produced oxygen by photosynthesis around 2.5 - 3.5 billion years ago on earth.

The correct option is C 3 billion
Cyanobacteria was first microbes that produced oxygen by photosynthesis around 2.5 - 3.5 billion years ago on earth.