Great Barrier Reef of Australia is

Options

A. 1000 km long
B. 2300 km long
C. 2400 km long
D. 3600 km long.

Answer

To solve the question regarding the length of the Great Barrier Reef of Australia, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Question**: The question asks about the length of the Great Barrier Reef of Australia.

2. **Recall Information**: The Great Barrier Reef is known to be the world's largest coral reef system.

3. **Locate the Reef**: It is located off the coast of Queensland, Australia.

4. **Determine the Length**: The Great Barrier Reef stretches for over 2,300 kilometers.

5. **Evaluate Options**: The options provided are:
- 1000 km long
- 2300 km long
- 2400 km long
- 3600 km long

6. **Select the Correct Option**: Based on the information recalled, the correct length of the Great Barrier Reef is 2300 km long.

### Final Answer:
The Great Barrier Reef of Australia is **2300 km long**.

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