A market is in equilibrium if at the market price the quantity demanded is equal to the quantity supplied. The price at which the quantity demanded is equal to the quantity supplied is called the equilibrium price or market clearing price and the corresponding quantity is the equilibrium quantity.
The water is blocking you from breathing in but you can breathe out and once that happens your vocal cords or the trachea below the vocal folds and detects water and takes 60 seconds to block your airways. I’m not sure if that’s right but i hope that helps.:)