Which of the following statements is true regarding dive safety?

Monitoring your air supply at all times is fundamental to dive safety. This practice ensures that divers are aware of how much air is remaining in their tanks, allowing them to plan their ascent and return to the surface safely without running out of air. It also helps in making decisions about the dive, such as whether to continue exploring or to surface earlier if air is running low.

Maintaining awareness of air supply helps prevent dangerous situations such as running out of air in deep water, which could lead to panic or unsafe ascents. Regularly checking the pressure gauge and having a buddy system in place to keep track of each other’s air supply further enhances safety during the dive.

Other options are not consistent with safe diving practices: diving alone poses significant risks, ascending quickly can lead to decompression sickness, and holding your breath during ascent can cause serious lung injuries due to expanding air.