Oviparous animal is :-

Options

A. Scoliodon
B. Viper
C. Scorpion
D. Cobra

Answer

To determine which of the given options represents an oviparous animal, we need to understand the definition of oviparous animals and analyze each option provided.

### Step-by-Step Solution:

1. **Definition of Oviparous Animals**:
- Oviparous animals are those that lay eggs, with the embryos developing outside the mother's body. This is a key characteristic that distinguishes them from viviparous animals, which give birth to live young.

2. **Analyzing the Options**:
- **Option 1: Squalidon**:
- Squalidon refers to a group of extinct marine mammals. They are not oviparous; instead, they are viviparous, meaning they give birth to live young. Thus, this option is incorrect.

- **Option 2: Viper**:
- Vipers are a family of snakes that are primarily ovoviviparous. This means they retain the eggs inside their bodies until they hatch, giving birth to live young. Therefore, this option is also incorrect.

- **Option 3: Scorpion**:
- Scorpions are primarily ovoviviparous as well, meaning they give birth to live young after the eggs hatch inside the mother's body. Thus, this option is incorrect.

- **Option 4: Cobra**:
- Cobras are indeed oviparous. They lay eggs, which is characteristic of oviparous animals. Therefore, this option is correct.

3. **Conclusion**:
- After analyzing all the options, the only oviparous animal listed is the cobra. Therefore, the correct answer is **Option 4: Cobra**.

### Final Answer:
The correct answer is **Cobra** (Option 4), as it is an oviparous animal that lays eggs.