sulfur oxides (SOx) and nitrogen oxides (NOx)
they form mainly oxides
No, sulfur, carbon and oxygen are elements not oxides.
turns into oxides
Those would be the "oxides" of the elements burned.
Acid rain is caused by, mainly, sulphur oxides and, to a lesser extent, nitrogen oxides dissolved in the rain.
Oxygen and a reactive metal
oxides
Carbon dioxide, water, nitrogen oxides, sulfur oxides, ashes formed from the oxides of other elements.
Most elements on the Earth occur as oxides or silicates.
What you have listed are not elements (except for the 'native elements'), they are classifications of minerals.
oxides or hydroxides
They are many as the oxides of many elements.