Identify the artificial ecosystem among the following?

Options

A. Lakes
B. Ponds
C. Tundras
D. Zoos

Explanation

To identify the artificial ecosystem among the given options, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definitions**:
- An **artificial ecosystem** is a man-made environment where organisms live, such as zoos, aquariums, or agricultural fields.
- A **natural ecosystem** is a community of living organisms interacting with their environment without significant human influence.

2. **Analyze the Options**:
- **Option 1: Lake** - This is a natural body of water formed by geological processes.
- **Option 2: Ponds** - Similar to lakes, ponds are also natural water bodies that can form through various natural processes.
- **Option 3: Tundras** - Tundras are cold, treeless regions that occur naturally in polar areas and are characterized by permafrost.
- **Option 4: Zoo** - A zoo is a facility where animals are housed and cared for by humans, and it is designed for conservation, education, and recreation.

3. **Identify the Artificial Ecosystem**:
- Among the options, the **zoo** is the only one that is created and maintained by humans, making it an artificial ecosystem. The other three options (lake, ponds, tundras) are all natural ecosystems.

4. **Conclusion**:
- Therefore, the artificial ecosystem among the given options is the **zoo**.