Zoology-Origin of Life
NEET Zoology Origin of Life MCQ Question
Type: MCQ-numerical-Medium-Class 12
If the Earth was formed about 4.5 billion years ago and the first cellular form of life appeared 2000 million years later, approximately how many million years ago did the first cellular life forms appear?
A
2500 million years ago
B
3000 million years ago
C
3500 million years ago
D
4000 million years ago
Correct Answer
Option C
Detailed Explanation
The Earth formed 4.5 billion years ago. The first cellular life appeared 2000 million (2 billion) years after that, making it approximately 3500 million years ago.
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