Answer: If the amount of fresh water entering mono lake decreased, the concentration of salinity increases and finally the lake would dry out. The opposite is true if more fresh waster entered the lake.
Explanation: The water in the lake is snowmelt and rainwater runoff from the mountains. It enters the lake through streams. Water can only remove by evaporation. When the water evaporates, the salts left behind.
So we can conclude that if the amount of fresh water entering mono lake decreased, the concentration of salinity increases and in the last the lake dry out.