Which of the following enhances safety during a dive?

Utilizing the buddy system is vital for enhancing safety during a dive because it ensures that divers have a partner who can assist in case of an emergency. Divers can monitor each other's safety, share air if necessary, and provide immediate support if one diver experiences difficulties such as panic, equipment failure, or physical distress. The buddy system fosters better situational awareness because two divers can observe and communicate effectively, reducing risks associated with solo diving.

In contrast, maintaining silence underwater can hinder communication with your buddy, which could be detrimental in emergency situations. Diving without a plan increases the chances of encountering unforeseen challenges, as divers may not be prepared for changes in conditions or air consumption. Relying solely on dive computers can give divers a false sense of security; while these devices are helpful, they do not replace the need for planning, situational awareness, and the presence of a dive buddy for additional safety. Therefore, the buddy system stands out as a crucial practice for dive safety.