Question: An average family of four uses roughly 1200 liters (about 300 gallons) of water per day. (One liter = 1000 cm3) How much depth would

An average family of four uses roughly 1200 liters (about 300 gallons) of water per day. (One liter = 1000 cm3) How much depth would a lake lose per year if it uniformly covered and area of 50 square kilometers and supplied a local town with a population of 40,000 people? Consider only population uses, and neglect evaporation and so on.

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