Assuming the earth is a perfect sphere with a radius of 6371 km and an atmosphere that extends from the surface to an altitude of 20 km determine the number of metric tons of the elements/compounds: N2, O2, Ar, CO2, Ne, He, CH4, Kr, H2, N2O, CO, Xe, O3, NH3, NO3, NO2, NO, SO2, H2S. Assume ideal gas behavior for all the listed compounds or elements. Express your answers to 4 significant figures.