1. Lake Pleasant, AZ, has a surface area of approximately 2,000 hectares. The inflow for the month of August is zero. The lake is dammed so that no water leaves the impoundment downstream of the dam. There is no rain in August. The evaporation is estimated to be 6.8 mm/d and the seepage out of the lake is estimated to be 0.01 mm/d. Assuming that the lake shore is vertical, estimate the distance the lake elevation drops in cm during the month of August.