Nowadays, certain companies have to pay ..... taxes that are imposed when greenhouse gases are emitted into the atmosphere. (*) oxygen (*) smoke (*) fume (*) carbon
This is a companion discussion topic for the original entry at https://english.best/questions/22470,nowadays-certain-companies-have-to-pay-___-taxes-that-are-imposed-when-greenhouse-gases-are-emitted-into-the-atmosphere/