Approximately 30 kg of consumer products are brought into a home by its residents on a weekly basis. Two thirds of this quantity are used as food, and about 2 kg of these products remain in the house. Every week, 75% of the waste is collected at the curb, with the remainder sent to recycling. 1. Plot the mass balance diagram of the house showing the mass of inputs, accumulations and outputs. 2. Estimate how much solid waste the residents leave out to the curb each week.