Assertion: ammonia's nitrogen | /r/HasProperty | fixed by lightning
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Source sentences:
text: includes industrial fertilizer production, nitrogen fixed by natural ecosystems, nitrogen fixed by oceans, nitrogen fixed by agricultural crops, NOx emitted by biomass burning, NOx emitted from soil, nitrogen fixed by lightning, NH3 emitted by terrestrial ecosystems, deposition of nitrogen to terrestrial surfaces and oceans, NH3 emitted from oceans, ocean NO2 emissions from the atmosphere, denitrification in oceans, and reactive nitrogen burial in oceans.
text: This figure summarizes the global cycling of reactive nitrogen.includes industrial fertilizer production,nitrogen fixed by natural ecosystems,nitrogen fixed by oceans,nitrogen fixed by agricultural crops,NOx emitted by biomass burning,NOx emitted from soil,nitrogen fixed by lightning,NH3 emitted by terrestrial ecosystems,deposition of nitrogen to terrestrial surfaces and oceans,NH3 emitted from oceans,ocean NO2 emissions from the atmosphere,denitrification in oceans,and reactive nitrogen burial in oceans.