Answer:
If you cannot inhale while scuba diving, you should immediately stop any downward motion of your body so that you are in an upright position and not upside down.
When this happens, hold your breath for a minimum of 2 minutes before breathing out. When scuba diving, you must maintain your air supply. If you are unable to exhale, you must be holding your breath in order to safely dive.
Explanation:
There are many situations where you cannot take a breath, including when you are swimming, surfacing, changing depth, or diving while unaided.
Since you are underwater during scuba diving, you cannot use your lungs to breathe the air. As soon as you enter the water, hold your breath and wait until you can at least inhale while underwater to hold your breath.
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