Question

which two processes convert nitrogen compound atmospheric nitrogen gas? bacterial action and burning fossil fuels evaporation and precipitation lightning strikes and erosion

Explanation:

Evaporation and precipitation are part of the water cycle, not nitrogen conversion. Lightning strikes fix atmospheric nitrogen into compounds (not the reverse), and erosion does not convert nitrogen compounds to N₂. Denitrifying bacteria convert nitrogen compounds to atmospheric N₂, and burning fossil fuels can release nitrogen compounds as N₂ gas.

Answer:

bacterial action and burning fossil fuels