What factors determine a diver's deep diving limits?

The determination of a diver's deep diving limits is closely related to comfort, skill, and the level of personal experience. Comfort in the water affects a diver's ability to manage stress and make sound decisions at depth, which is critical for safety. A diver who is comfortable can handle unexpected situations more effectively and maintain control over their buoyancy and air consumption.

Skill is another essential factor because it encompasses a diver's proficiency with equipment, knowledge of diving techniques, and ability to perform necessary maneuvers under pressure. The more skilled a diver is, the better they can react during a dive, particularly in challenging conditions often encountered at greater depths.

Personal experience ties these factors together since it encompasses the cumulative knowledge a diver gains over time. Experienced divers are more likely to have faced a variety of scenarios that prepare them for deep diving, thus allowing them to assess risks and make informed decisions about their limits.

The other options do include relevant aspects, but they do not fully encompass the primary characteristics that determine a diver's limits in deep diving scenarios. For instance, while environmental conditions and gear quality are important for safety, they do not directly relate to a diver's individual capability in handling the deeper depths effectively. Ultimately, a diver’s limits are best defined by their