In a given year, a watershed with an area of 2500 km 2 received 130 cm of precipitation. The average rate of flow measured in the river draining watershed was 30 m 3 /s.
a. Determine the amount of water, in cm, lost due to the combined effects of evaporation, transpiration, and infiltration to ground water.
b. How much runoff, in cm, disappeared from watershed as stream flow?