1. **Problem Statement:** Calculate the carbon emissions for transporting goods between cities using different transport modes (Truck, Train, Air) based on given distances, fuel consumption, and emission factors. 2. **Given Data:** - Distances between cities (in km) are provided. - Fuel consumption and emission factors: - Truck (Diesel): 3.75 km/liter, 2.64 kg CO2/liter - Train (Electric): 0.15 kWh/ton-km, 0.65 kg CO2/kWh - Train (Diesel): 0.30 liter/ton-km, 2.64 kg CO2/liter - Air (Domestic Flights): 4.8 liters/seat-km, 2.35 kg CO2/liter 3. **Formulas:** - For Truck (Diesel): $$\text{Emissions} = \frac{\text{Distance}}{3.75} \times 2.64$$ - For Train (Electric): $$\text{Emissions} = \text{Distance} \times 0.15 \times 0.65$$ - For Train (Diesel): $$\text{Emissions} = \text{Distance} \times 0.30 \times 2.64$$ - For Air: $$\text{Emissions} = \text{Distance} \times 4.8 \times 2.35$$ 4. **Explanation:** - Calculate fuel consumed by dividing distance by fuel efficiency or multiplying by consumption per ton-km or seat-km. - Multiply fuel consumed by emission factor to get CO2 emissions. 5. **Example Calculation:** Calculate emissions for Truck from Mumbai to Delhi (Distance = 521 km): - Fuel consumed = $$\frac{521}{3.75} = 138.93$$ liters - Emissions = $$138.93 \times 2.64 = 366.75$$ kg CO2 This method applies similarly for other routes and transport modes. Final answer: Use the above formulas to compute emissions for any given city pair and transport mode.