Which statement is true about speaking underwater?

Underwater communication poses unique challenges primarily due to the differences in how sound travels in water compared to air. Sound travels faster and can be distorted underwater, making it difficult for divers to rely on spoken words as a means of communication. Factors such as the density of water, varying temperatures, and salinity can also affect sound quality and clarity, leading to misunderstandings and miscommunication among divers.

While divers can use their voices underwater, the distortion and difficulty in hearing make it impractical for clear communication, hence the importance of alternative methods like hand signals or underwater communication devices. These methods are specifically designed to overcome the limitations encountered when attempting to speak underwater, emphasizing the necessity for divers to be adept in non-verbal communication techniques to ensure safety and effective coordination during dives.