Which one of the following is not a poisonous snake ?

Options

A. Cobra ( Naja naja )
B. Ajgar ( Python )
C. Krait ( Bungarus )
D. Viper ( Viper russelli )

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks to identify which of the given options is not a poisonous snake.

2. **Know the Characteristics of Snakes**: Snakes are elongated, legless reptiles that are carnivorous and often possess venom to subdue their prey. Venom is a modified form of saliva that contains various toxins.

3. **Identify the Options**: The options provided include different types of snakes, including Cobra, Ajgar (Python), Krait, and Viper.

4. **Analyze Each Option**:
- **Cobra**: This is known to be a poisonous snake that uses venom to immobilize its prey.
- **Ajgar (Python)**: This snake does not possess venom. Instead, it kills its prey by constriction, making it a non-poisonous snake.
- **Krait**: This is a highly poisonous snake that belongs to the cobra family.
- **Viper**: Vipers are also known to be poisonous snakes, with several species being highly venomous.

5. **Conclusion**: After analyzing all the options, the only snake that is not poisonous is the Ajgar (Python).

**Final Answer**: The snake that is not poisonous is Ajgar (Python).

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