A typical car driven 20,000 km a year emits to the atmosphere about 11 kg peryear of NOx(nitrogen oxides), which cause smog in major population areas. Natural gas burned in the furnace emits about 4.3 g of NOxper therm (1 therm= 105,500 kJ), and the electric power plants emit about 7.1 g of NOxper kWhof electricity produced. Consider a household that has two cars and consumes9000kWh of electricity and 1200 therms of natural gas per year. Determine theamount of NOxemission to the atmosphere per year for which this householdis responsible.