The Marshes also constitute a sanctuary, with a _________ of diversity.

Answer

To fill in the blank in the sentence "The Marshes also constitute a sanctuary, with a _________ of diversity," we need to understand what marshes are and their ecological significance.

### Step-by-Step Solution:

1. **Understand what marshes are**: Marshes are a type of wetland characterized by the presence of waterlogged soil and vegetation, primarily consisting of grasses and shrubs. They are not dominated by trees.

2. **Identify the ecological role of marshes**: Marshes serve as important ecosystems that support a wide variety of plant and animal life. They are known for their rich biodiversity.

3. **Define the term "diversity" in this context**: In ecology, "diversity" refers to the variety of species present in a particular habitat. A high level of diversity indicates a large number of different species of plants and animals.

4. **Choose an appropriate word to fill the blank**: Given that marshes are known for their rich biodiversity, the most suitable phrase to complete the sentence is "high level."

5. **Complete the sentence**: Therefore, the completed sentence reads: "The Marshes also constitute a sanctuary, with a high level of diversity."

### Final Answer:
The Marshes also constitute a sanctuary, with a **high level** of diversity.

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