Highly productive and shallow lakes are

Options

A. oligotrophic lakes
B. eutrophic lakes
C. lotic waters
D. none correct

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about lakes that are characterized as "highly productive and shallow."

2. **Defining Key Terms**:
- **Highly Productive**: This refers to lakes that have a high rate of biological productivity, meaning they support a lot of plant and animal life due to the availability of nutrients.
- **Shallow Lakes**: These are lakes that do not have a significant depth, which often allows for sunlight to penetrate and support aquatic plant growth.

3. **Identifying Types of Lakes**:
- **Oligotrophic Lakes**: These lakes are characterized by low nutrient levels and are typically deep, resulting in lower productivity.
- **Eutrophic Lakes**: These lakes have high nutrient levels, which leads to high productivity. They are often shallow, allowing for abundant plant growth.
- **Low Tick Water**: This term does not refer to a specific type of lake and is not relevant to the question.
- **None Correct**: This option implies that none of the provided options are correct.

4. **Analyzing the Options**:
- **Option A (Oligotrophic lakes)**: Incorrect, as these lakes are low in nutrients and productivity.
- **Option B (Eutrophic lakes)**: Correct, as these lakes are known for being highly productive and shallow due to their high nutrient content.
- **Option C (Low Tick Water)**: Incorrect, as this does not pertain to the question about lake types.
- **Option D (None correct)**: Incorrect, since option B is indeed correct.

5. **Conclusion**: Based on the definitions and analysis of the options, the answer to the question is **Option B: Eutrophic lakes**.