Please answer the following

1) [4 points] For the in-class exercise, you calculated emission rates for residential lighting (2.0 16 CO./kWh) and gasoline combustion (20 lb CO/gal gasoline). In order to directly compare these emission rates, a common energy unit is needed. Use the conversion factors below and determine emission rates in lb CO/ for residential lighting and gasoline combustion. Which one (residential lighting or gasoline combustion) has a higher emission rate? 1 gallon of gasoline = 120,000,000 J 1 kWh = (1000 W x 1 hr) = (1000 J/s X 3600 s) = 3,600,000 J 2) [8 points] Calculate the annual savings in gasoline and Ib CO, that would result from switching from a 16 mpg truck to a 32 mpg car. Assume the vehicle is driven 10,500 miles per year. (Note: the combustion of 7.5 gal of gasoline generates 150 lb of CO2)