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 N₂0. 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.