Which of the following is an example of a static water source?

Answer: C — Lakes

A static water source refers to a body of water that does not flow or have currents, making it stable for drawing water, especially in firefighting contexts. Lakes are considered static water sources because they contain standing water that can be accessed without the complications of flowing water. In contrast, waterfalls and streams are dynamic bodies of water, characterized by movement and flow. Waterfalls represent flowing water that cascades, while streams continuously move in one direction. Reservoirs, while they may appear static, are typically managed bodies of water and can have inflow and outflow processes affecting their static nature, so they may not qualify as static under certain definitions. Lakes, by definition, provide ample supplies of still water that can be utilized effectively in emergencies, which is why they serve as a prime example of static water sources.