Origin of life took placee in which of the following era:

Options

A. Mesozoic
B. Plaeozoic
C. Precambrian
D. Proterozoic

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the era in which the origin of life occurred.

2. **Identifying the Options**: The options provided include different geological eras. It is important to know what each era represents in terms of geological time.

3. **Reviewing Geological Eras**:
- **Mesozoic Era**: Known for the age of dinosaurs, occurring approximately 252 million years ago.
- **Paleozoic Era**: This era is characterized by the emergence of various life forms, but it is not where life originated.
- **Pre-Cambrian Era**: This is the oldest era, which includes the formation of the Earth and the appearance of the first life forms.

4. **Identifying the Origin of Life**: The first life forms are believed to have emerged during the Pre-Cambrian era, specifically in the form of cyanobacteria, around 3.5 to 4 billion years ago.

5. **Conclusion**: Based on the information gathered, the correct answer to the question is the Pre-Cambrian era, as it is recognized as the time when the first life forms appeared.

**Final Answer**: The origin of life took place in the Pre-Cambrian era.

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