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Question
The oldest known fossils of single-celled organisms areA) 4.6 billion years old.
B) 3.9 billion years old.
C) 3.3-3.5 billion years old.
D) 1.3-1.5 billion years old.
Answer
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Related questions
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B) decreases by 100/273.
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D) increases by 100/273.
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A) First law
B) Second law
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Newton discovered
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