Water which is free from all impurities and micro-organisms and is thus fit for drinking is called :

Options

A. Potable water
B. Usable water
C. Clean water
D. Useful water

Answer

To solve the question, we need to identify the term that describes water that is free from impurities and microorganisms, making it suitable for drinking.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a specific type of water that is safe for human consumption. We need to focus on the definitions related to water quality.

2. **Identifying Key Terms**:
- "Free from all impurities" indicates that the water should not contain any harmful substances or contaminants.
- "Free from microorganisms" suggests that the water should not have any bacteria, viruses, or other pathogens that could cause illness.
- "Fit for drinking" means that the water is safe and suitable for human consumption.

3. **Defining the Term**: The term that encompasses all these qualities is "potable water."
- "Potable" is derived from the Latin word "potare," which means "to drink."
- Therefore, potable water is defined as water that is safe to drink and free from harmful impurities and microorganisms.

4. **Conclusion**: Based on the definitions and understanding, the answer to the question is:
- **Potable Water**.

### Final Answer:
Water which is free from all impurities and microorganisms and is thus fit for drinking is called **potable water**.

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