If 'water' is called 'air','air' is called 'tree', 'tree' is called 'sky', 'sky' is called 'sea' and 'sea' is called 'fire', where do aeroplane fly ?

Options

A. water
B. sky
C. fire
D. sea

Answer

To solve the problem, we need to follow the renaming of the terms step by step to find out where aeroplanes fly according to the new definitions given.

### Step-by-Step Solution:

1. **Identify the original term for where aeroplanes fly.**
- Normally, aeroplanes fly in the **sky**.

2. **Apply the renaming rules:**
- According to the problem:
- 'water' is called 'air'
- 'air' is called 'tree'
- 'tree' is called 'sky'
- 'sky' is called 'sea'
- 'sea' is called 'fire'

3. **Determine what 'sky' is called:**
- From the renaming, we see that **sky** is called **sea**.

4. **Conclusion:**
- Since aeroplanes normally fly in the **sky**, and according to the new naming convention, the **sky** is now referred to as the **sea**. Therefore, aeroplanes fly in the **sea**.

### Final Answer:
Aeroplanes fly in the **sea**.

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