Primitive atmoshpere was made up of the mixture of :

Options

A. Oxygen , ammonia, methane, wate
B. Hydrogen, ammonia, methane, oxygen
C. Hydrogen , steam methane, ammonia
D. Oxygen , methane, water, nickle

Answer

**Step-by-Step Solution:**

1. **Understanding Primitive Atmosphere**:
The primitive atmosphere refers to the conditions present on Earth before the origin of life. It was characterized by harsh conditions and a lack of oxygen.

2. **Identifying the Components**:
The key components of the primitive atmosphere included gases that were prevalent during that time. These gases were primarily reducing in nature.

3. **Key Gases Present**:
The gases that were present in the primitive atmosphere included:
- Hydrogen (H₂)
- Ammonia (NH₃)
- Methane (CH₄)
- Water vapor (H₂O)

4. **Exclusion of Oxygen**:
It is important to note that oxygen (O₂) was not present in the primitive atmosphere. This is a critical point because the environment was reducing, meaning it lacked free oxygen.

5. **Conclusion**:
Based on the analysis, the primitive atmosphere was made up of a mixture of hydrogen, ammonia, methane, and water vapor. Therefore, the correct answer is the combination of these gases.

**Final Answer**: The primitive atmosphere was made up of a mixture of hydrogen, ammonia, methane, and water vapor.

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