First photosynthetic bacteria might have appeared aroundA. 3.8-4.2 billion years agoB. 3.5-3.8 billion years agoC. 3.3-3.5 billion years agoD. 2.6-2.8 billion years ago

First photosynthetic bacteria might have appeared aroundA. 3.8-4.2 bil

1.	First photosynthetic bacteria might have appeared aroundA. 3.8-4.2 billion years agoB. 3.5-3.8 billion years agoC. 3.3-3.5 billion years agoD. 2.6-2.8 billion years ago
Answer» Correct Answer - B

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First photosynthetic bacteria might have appeared aroundA. 3.8-4.2 billion years agoB. 3.5-3.8 billion years agoC. 3.3-3.5 billion years agoD. 2.6-2.8 billion years ago

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