What is Potable water ?

Question

Accepted Answer

Potable water is defined as water that is safe to drink or use for food preparation. It is free from impurities and contaminants that could pose a risk to human health. Let's explore why Option 1 is the correct answer and why the other options are incorrect:

1. **Option 1: Free from impurities**  
   Potable water must be free from impurities such as harmful bacteria, viruses, chemicals, and physical contaminants. These impurities can cause diseases or health issues if consumed. The process of making water potable involves filtration, disinfection, and sometimes chemical treatment to remove or neutralize these impurities. Therefore, potable water being "free from impurities" is the correct definition, as it ensures the water is safe for human consumption.

2. **Option 2: Mixing of dust in water**  
   Dust in water is considered a physical impurity. The presence of dust can make water turbid and potentially carry microorganisms or other harmful substances. Water with dust is not considered potable because it is not free from impurities. Therefore, this option is incorrect.

3. **Option 3: Addition of animal excreta**  
   Animal excreta in water introduces harmful pathogens, including bacteria, viruses, and parasites, which can cause serious illnesses. Water contaminated with animal excreta is far from being potable, as it poses significant health risks. Thus, this option is incorrect.

4. **Option 4: Presence of salts**  
   While some salts are naturally present in water, high concentrations can make water unsafe or unpleasant to drink. For example, excessive sodium or other mineral salts can lead to health issues or make the water taste bad. Potable water should have balanced mineral content that is safe for consumption. Therefore, the mere presence of salts does not define potable water, making this option incorrect.

In conclusion, potable water is characterized by being free from impurities, which ensures its safety and suitability for drinking and cooking. This aligns with Option 1 as the correct answer.