Final answer:
Swim-roll-float-swim is emphasized to promote water safety and survival skills. It teaches swimmers what to do in a dangerous situation in the water.
Step-by-step explanation:
In swimming, the technique of swim-roll-float-swim is emphasized because it helps to promote water safety and survival skills. This technique teaches swimmers what to do if they find themselves in a dangerous situation in the water.
Swim: The first step is to swim towards safety, using proper stroke technique to move through the water efficiently.
Roll: The next step is to roll onto your back, which allows you to rest and conserve energy while still staying afloat.
Float: In this position, you can rest and regain composure while keeping your mouth and nose above the water's surface to breathe.
Swim again: Finally, you swim again towards safety, using proper stroke technique to move through the water efficiently. This technique is taught to enhance water safety and prevent drowning incidents.