The early atmosphere was

Options

A. Oxidising
B. Reducing
C. Non-reactive
D. Non-reducing

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Early Atmosphere:**
The early atmosphere of Earth was significantly different from what we experience today. It was characterized by a lack of oxygen and high temperatures.

2. **High Temperatures and Volcanic Activity:**
During the primitive Earth, the high temperatures led to frequent volcanic eruptions. These eruptions contributed to the composition of the atmosphere but did not allow for the development of a stable atmosphere.

3. **Composition of Gases:**
The gases present in the early atmosphere included water vapor, methane, ammonia, and hydrogen. Notably, there was very little to no oxygen present.

4. **Defining Reducing Atmosphere:**
The term "reducing" refers to a condition where there is a loss of oxygen. Since the early atmosphere lacked oxygen, it is classified as a reducing atmosphere.

5. **Current Atmosphere Comparison:**
In contrast, the current atmosphere is termed "oxidizing" because it contains a significant amount of oxygen. This distinction helps us understand the evolution of the Earth's atmosphere over time.

6. **Conclusion:**
Based on the characteristics of the early atmosphere, the correct classification is that it was a reducing atmosphere.

**Final Answer:**
The early atmosphere of Earth was reducing.

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