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  4. First cellular forms of life on earth appeared

Q. First cellular forms of life on earth appeared

 6634  258 NTA AbhyasNTA Abhyas 2020Evolution Report Error

Solution:

Origin of universe 20 billion years ago
Origin of earth 4.5 billion years ago
First life 4 billion years ago
Origin of First non-cellular forms of life 3 billion years ago
Origin of First cellular form of life (probably single-cells) 2 billion years ago