Is demineralised or distilled water useful for drinking purpose? If not, how can it be made useful?

Explanation

### Step-by-Step Solution

1. **Understanding Demineralized and Distilled Water:**
- Demineralized water is water that has had its mineral ions removed, including salts such as sodium, calcium, iron, and magnesium.
- Distilled water is produced by boiling water and then condensing the steam back into a liquid, which also removes minerals and impurities.

2. **Importance of Water:**
- Water is essential for all living organisms, including plants, animals, and humans. It plays a crucial role in various biological processes.
...