State two postulates of Oparin and Haldane with reference to origin of life

Explanation

To answer the question regarding the postulates of Oparin and Haldane with reference to the origin of life, we can outline the following steps:

### Step-by-Step Solution:

1. **Understanding the Context**: Oparin and Haldane were scientists who proposed theories about how life originated on Earth. Their ideas were based on the conditions of the early Earth and the chemical processes that could lead to the formation of life.

2. **Postulate 1 - Primitive Atmosphere**:
- Oparin and Haldane suggested that the primitive atmosphere of Earth was reducing in nature. This means it had an abundance of hydrogen, methane, ammonia, and water vapor, but lacked free oxygen.
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