The atmosphere contains about 5.2 x1015 t of air.  What mass in metric tons of carbon dioxide is in the atmosphere if the concentration of CO2 is 395 ppm?

4 answers

I don't what the t stands for.
t = tonnes
(5.2 x 10^15 t) x (395 x 10^-6) = 2.1 x 10^12 t CO2
(5.2 x 10^15 t) x (395 x 10^-6) = 2.1 x 10^12 t CO2