Choose the correct answer :
Which of the following is most stable ecosystem ?

Options

A. Mountain
B. Desert
C. Forest
D. Ocean

Answer

To determine which ecosystem is the most stable among the given options (Mountain, Desert, Forest, Ocean), we can analyze each ecosystem based on their characteristics.

### Step-by-Step Solution:

1. **Analyze the Mountain Ecosystem**:
- Mountains are prone to natural disasters such as landslides and avalanches.
- The terrain is often unstable, making it a risky environment for organisms.
- **Conclusion**: Mountains are not a stable ecosystem.

**Hint**: Consider the impact of natural disasters on ecosystem stability.

2. **Analyze the Desert Ecosystem**:
- Deserts are characterized by extreme water scarcity.
- Organisms must adapt to harsh conditions, including high temperatures and limited food sources.
- The unpredictability of water availability makes it difficult for life to thrive consistently.
- **Conclusion**: Deserts are not a stable ecosystem.

**Hint**: Think about how resource scarcity affects the survival of organisms.

3. **Analyze the Forest Ecosystem**:
- Forests provide a variety of resources, including water, food, and shelter.
- However, they also have high competition among species for these resources.
- Increased competition can lead to scarcity of food, affecting the overall stability of the ecosystem.
- **Conclusion**: Forests have potential but are challenged by competition, making them less stable.

**Hint**: Reflect on how competition among species can influence ecosystem dynamics.

4. **Analyze the Ocean Ecosystem**:
- Oceans cover a vast area and provide abundant resources, including food.
- The marine environment has a complex food web that supports a diverse range of organisms.
- Compared to other ecosystems, oceans are less prone to drastic changes and have a more stable environment.
- **Conclusion**: The ocean ecosystem is the most stable due to its resource availability and resilience.

**Hint**: Consider the diversity and abundance of resources in the ocean compared to other ecosystems.

### Final Answer:
The most stable ecosystem among the options provided is **D. Ocean**.