September 1, 1970
1 min read
The Nitrogen Cycle
Nitrogen is 79 percent of the atmosphere, but it cannot be used directly by the large majority of living things. It must first be fixed by specialized organisms or by industrial processes
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September 1, 1970
1 min read
The Nitrogen Cycle
Nitrogen is 79 percent of the atmosphere, but it cannot be used directly by the large majority of living things. It must first be fixed by specialized organisms or by industrial processes