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Nitrogen cycles

Across
Milk products that give us protein
How many atoms are in nitrate
DNA is one
Air pollutant we release when burning fossil fuels
Energy molecule that contains nitrogen
To release nitrogen back into air
Easy thing to eat to get protein
These bean plants play an important role in the cycle
Down
About how many grams you need of protein daily
Common plant protein based protein
Nitrogen molecule made of nitrogen plus three hydrogen atoms
Liquid protein waste we excrete
What too much nutrient in waterways is called
Where N2 is found
Proteins are made of strings of these nitrogen compounds
Nitrogen packed soil additive that can lead to too much nutrient in tributaries
AN odd way some nitrogen enters the soil
These soil organisms transform nitrogen into useful compounds