The first life had appeared about

4.8 billion years ago

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3.8 billion years ago

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1.4 billion years ago

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2 billion years ago

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Solution

The correct option is B 3.8 billion years ago
About 3.8 billion years ago after the formation of earth, single celled prokaryotic cells (bacteria) appeared. It is supposed that the multicellular living organisms evolved from them. So, the correct option is B.

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Similar questions

Match the events leading to the origin of life listed under column I with the time frame given under column II; choose the right answer which gives the correct combination of the alphabets of the two columns:

$\begin{matrix} C o l u m n I & C o l u m n I I E v e n t s & T i m e F r a m e A & O r i g i n o f u n i v e r s e & p & 3 b i l l i o n y e a r s a g o B & O r i g i n o f e a r t h & q & 4.6 b i l l i o n y e a r s a g o C & O r i g i n o f s t a r s & r & 10 b i l l i o n y e a r s a g o D & O r i g i n o f l i f e & s & 14 b i l l i o n y e a r s a g o t & 5 b i l l i o n y e a r s a g o \end{matrix}$

Q. The abiogenesis occurred about how many billion years ago

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The first life had appeared about

The correct option is B 3.8 billion years agoAbout 3.8 billion years ago after the formation of earth, single celled prokaryotic cells (bacteria) appeared. It is supposed that the multicellular living organisms evolved from them. So, the correct option is B.

The correct option is B 3.8 billion years ago
About 3.8 billion years ago after the formation of earth, single celled prokaryotic cells (bacteria) appeared. It is supposed that the multicellular living organisms evolved from them. So, the correct option is B.