A farmer uses 10,000 L of water to produce 100 kg of biomass and 25 kg of food product

A farmer uses 10,000 L of water to produce 100 kg of biomass and 25 kg of food product. The farming process also uses 2 kg of CH4 as fuel and emits 15 kg of CO2 and 0.5 kg of N2O. The harvested biomass is stored, during which time some of it rots and emits 0.1 kg of CH4 per kilogram of stored biomass. When the stored biomass is converted into fuel it produces 12.5 kg of CH4 and 11 kg of CO2 per 50 kg of biomass. This conversion process needs 5 L of water as input. Using this information, prepare diagrams representing farming, storage, and fuel conversion modules. Calculate the carbon and water footprints per kilogram of CH4 produced.