The first life originated

Options

A. on land
B. in air
C. in water
D. all of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where the first life originated: on land, in air, or in water.

2. **Reviewing Scientific Theories**: Various scientists have proposed different theories regarding the origin of life. It is essential to consider these theories to understand the prevailing view.

3. **Importance of Water**: Water is a critical component for life. A significant portion of living cells is made up of water, and life cannot be sustained without it. This indicates that water plays a vital role in the formation and sustenance of life.

4. **Evolutionary History**: In the evolutionary timeline, the earliest forms of life are believed to be simple, single-celled organisms. Over time, these evolved into more complex forms of life.

5. **Fossil Evidence**: Fossil records show that the first vertebrates, which are fishes, appeared in aquatic environments. Other groups like amphibians, reptiles, birds, and mammals evolved later when some species transitioned from water to land.

6. **Conclusion**: Based on the importance of water for life and the evolutionary evidence, it is concluded that the first life originated in water.

7. **Final Answer**: Therefore, the correct answer is that the first life originated in water (Option C).

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