Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most ...

Save guides, add subjects and pick up where you left off with your BBC account. Nitrogen gas makes up 78% of Earth’s atmosphere and is an essential element in amino acids and proteins.

Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most ...