19-04-2021
Biology

contestada

all of the following gases are naturally occurring in the atmosphere EXCEPT—

a) CO2
b) H2O
c) NO2
d) CFCs

Respuesta :

strawberrybunny11 strawberrybunny11

19-04-2021

Answer:

CFCs

Explanation:

because CO2,H20,NO2 are all naturally occurring and CFCs are man made

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