What defines potable water?

• A. Water that looks appealing
• B. Water that is safe to drink
• C. Water that may taste good but is not safe
• D. Water that is used for irrigation

Answer: (B)

Potable water is defined as water that is safe to drink. This means it meets health standards and is free from contaminants that could cause illness. The criteria for potable water include factors such as the absence of harmful microorganisms, chemicals, and radiological hazards, thereby ensuring that it is safe for human consumption.

In contrast, options that refer to appealing appearance or taste do not guarantee safety; water can look or taste good but may still contain harmful substances, thus making it unsafe to drink. Similarly, water designated for agricultural purposes, such as irrigation, is not treated or tested to the same standards as potable water and can contain contaminants that are harmful to human health. Hence, the answer emphasizes the essential quality of the water being safe for consumption, which is the fundamental criterion for potability.