Estimate the amount of water used to supply a 100-W lightbulb for 10 hours in the US grid? Given the emission rates of electric generation in a region, calculate the carbon footprint of a household...

Estimate the amount of water used to supply a 100-W lightbulb for 10 hours in the US grid? Given the emission rates of electric generation in a region, calculate the carbon footprint of a household that consumes 8000 kWh in one year. CO2: 725 kg/MWh; SO2: 1.7 kg/MWh; NOx: 1.6 kg/MWh.