Tommy has been asked to write a 1-page essay about recycling. he decides to write about biodiesel, which is a fuel that is made from recycled oil. which of the following would make a solid thesis for tommy's essay?
a recycling old cooking oil for use in diesel engines the environment by reducing carbon emissions and limiting our need for fossil fuels.
b electric cars are really better than biodiesel engines because electric engines do not burn fuel at all, so there is less global warming.
c biodiesel is great for the economy because it is basically free, for all you have to do is put old vegetable oil in your car.
d biodiesel is created from corn products, but it can also come from old cooking oil or left-over animal fat from the meat packing industry.