What common challenge may arise when rescuing occupants from a submerged vehicle?

When rescuing occupants from a submerged vehicle, visibility and air supply pose significant challenges. In a submerged environment, visibility is often severely limited due to murky water, debris, and darkness. This can make it difficult for rescuers to locate victims within the vehicle as well as navigate to them effectively.

Air supply is equally critical because submerged occupants may only have a limited time to breathe before they face life-threatening situations. As water fills the vehicle, it becomes imperative for rescuers to assess the air supply levels quickly and efficiently. Understanding the nuances of these challenges is vital for effective rescue operations, as rescuers must operate swiftly and with precision to ensure the safety of both the victims and themselves during the operation.

While there may be issues related to the availability of rescue tools or communication with victims, these do not match the urgency and critical nature of visibility and air supply when responding to submerged vehicle rescues.