Ryanair Initial Practice Exam

Which source is NOT recommended for drinking water in a survival scenario?

1. Old sea ice

2. Plants

3. Sand

4. Ground water

The correct answer is: Sand

In a survival scenario, the focus is on identifying safe sources of drinking water, and the choice of sand as the source that is not recommended is based on its properties. Sand does not hold water in a form that is safe for drinking. While sand may retain some moisture, it is not a viable source of potable water because it lacks the necessary purity and can contain harmful bacteria, pathogens, or contaminants. Conversely, other options present more reliable sources of drinking water. Old sea ice, while it may contain salt and require treatment, can be melted for water. Plants can be sources of water; certain types can provide moisture through their structure or through direct extraction. Groundwater is generally one of the safest sources as it is filtered through soil layers, often resulting in water that is free from many surface contaminants. This context underscores why sand is not regarded as a practical or safe source of drinking water in survival situations.