Origin of earth dates back to

Options

A. 10,000-15,000 million years ago
B. 4000-4600 million years ago
C. 500-1000 million years ago
D. 2000-3000 million years ago

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the origin of Earth and its timeline.

2. **Identifying the Timeframe**: Scientific estimates suggest that the Earth originated approximately 4 billion years ago.

3. **Converting Timeframes**: To express this in a different unit, we can convert billion years into million years. Since 1 billion equals 1000 million, 4 billion years translates to 4000 million years ago.

4. **Confirming the Timeline**: The origin of Earth is generally accepted to be between 4.5 to 4.6 billion years ago, which can also be expressed as 4500 to 4600 million years ago.

5. **Conclusion**: Therefore, the origin of Earth dates back to approximately 4,000 to 4,600 million years ago.

**Final Answer**: The origin of Earth dates back to approximately 4,000 to 4,600 million years ago.

---