Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity ?

Which oxide of nitrogen is not a common pollutant introduced into the

1.	Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity ?
Answer» NO `N_2 O_5` `N_2 O` `NO_2` SOLUTION :`N_2 O_5`