Final answer:
The best text feature for understanding hydroelectric power is a diagram illustrating how the power systems work, showing components like the dam, turbines, and generators, and how they convert water flow into electricity.
Step-by-step explanation:
The text feature that would best help the reader to understand the information in an article about hydroelectric power is A. a diagram showing how hydroelectric power systems function in the water. This type of visual aid can illustrate the key components of hydroelectric systems, such as the dam, reservoir, turbines, and generators, and how water flow is used to generate electricity. It can demonstrate the process, from the potential energy of the stored water to the kinetic energy of the moving water, and ultimately how it generates electric power. A diagram can simplify complex processes and provide a clear, visual representation of how hydroelectric facilities harness water to produce energy.
Hydroelectric energy involves trapping water behind a dam, forcing it to flow through a turbine that spins a generator to make electricity. This process converts the potential energy into kinetic energy, which is then used to generate electrical power with high efficiency. A diagram illustrating this can enhance comprehension by visually depicting these concepts.