Final answer:
The '5 wilderness hexes' question seems hypothetical and relates to an example or scenario possibly used in an educational context to discuss the importance of freshwater sources such as lakes, rivers, streams, wetlands, or glaciers, which represent clean and untouched water supply within a nation.
Step-by-step explanation:
The student's question is: 'The 5 wilderness hexes that represent your nation's clean and untouched water supply are called what?' This question does not appear to refer directly to an established term within geography or environmental science but seems to be hypothetical or from a particular educational or game scenario. However, in the broader context of environmental geography, the concept of wilderness hexes as it pertains to water supply might be seen as a representation of pristine sources of freshwater. Such sources could be classified in real-world terms as lakes, rivers, streams, wetlands, or glaciers, which are the reservoirs of clean, untreated water in nature. The idea of wilderness as a representation of the world before widespread human influence aligns with historical views of nature conservation and reflects a desire to return to or preserve ecosystems undisturbed by human activity.