MCQ
Origin of earth dates back to
  • A
    $10,000-15,000$ million years ago
  • $4000-4600$ million years ago
  • C
    $500-1000$ million years ago
  • D
    $2000-3000$ million years ago

Answer

Correct option: B.
$4000-4600$ million years ago
b
Origin of universe = $20\; billion$ years ago
Origin of earth = $4.5\; billion$ years ago

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