What is a "wake"?

A "wake" refers to the waves produced by a moving boat as it travels through the water. When a boat moves, it displaces water, creating a series of waves behind it. These waves are typically characterized by their size and shape, influenced by the boat's speed and hull design. The wake can also have implications for navigation, safety, and the environment, as it may affect other vessels and shoreline areas.

The other options do not accurately define "wake." The sound made by a boat engine is distinct and unrelated. The distance between two boats refers to spacing rather than the physical manifestation created by movement through water. Water depths near the shore pertain to how deep the water is, which also does not connect to the concept of a wake. Thus, the accurate definition focuses on the waves generated by a boat in motion.