The zone at the edge of a lake or ocean which is alternatively exposed to air and immersed in water is called

Options

A. pelagic zone
B. benthic zone
C. lentic zone
D. littoral zone

Answer

To answer the question, "The zone at the edge of a lake or ocean which is alternatively exposed to air and immersed in water is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a specific ecological zone found at the edges of lakes or oceans, characterized by its exposure to both air and water.

2. **Identifying Relevant Zones**: We need to consider different ecological zones that could fit this description. Common zones include:
- Pelagic Zone
- Benthic Zone
- Lentic Zone
- Littoral Zone

3. **Defining Each Zone**:
- **Pelagic Zone**: Refers to the open ocean waters, not the edges.
- **Benthic Zone**: The deepest part of the ocean, not relevant to the edges.
- **Lentic Zone**: Associated with standing water bodies like ponds and lakes, but not specifically the edge.
- **Littoral Zone**: This is the shallow coastal area at the edge of lakes and oceans, which is alternately exposed to air and submerged in water.

4. **Choosing the Correct Answer**: Based on the definitions, the **Littoral Zone** is the correct answer as it fits the description of being at the edge of a lake or ocean, alternately exposed to air and water.

5. **Final Answer**: The zone at the edge of a lake or ocean which is alternatively exposed to air and immersed in water is called the **Littoral Zone**.