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What are sources of nitrogen in the environment ?
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What are sources of nitrogen in the environment ?

User Acegs
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The main source of nitrogen include: atmospheric precipitation, geological sources, agricultural land, livestock and poultry operations and urban waste. Agricultural emissions show a strong increase due to the application of fertilizer to agricultural soils, grazing of animals and spreading of animal manure
User Itxaka
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Answer:

Atmospheric precipitation, livestock and poultry operations and urban wastes.

Step-by-step explanation:

User TWhite
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