The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted
into various chemical forms as it circulates among the atmosphere and terrestrial
This module provides an overview of the nitrogen cycle and the chemical
changes that govern the cycle.
The Nitrogen Cycle. All life requires nitrogen-compounds, e.g., proteins and
nucleic acids. Air, which is 79% nitrogen gas (N2), is the major reservoir of
The nitrogen cycle represents one of the most important nutrient cycles found in
terrestrial ecosystems (Figure 9s-1). Nitrogen is used by living organisms to ...
The Nitrogen Cycle. Take a deep breath. Most of what you just inhaled is nitrogen
. In fact, 80% of the air in our atmosphere is made of nitrogen. Your body does ...
Kids learn about the nitrogen cycle and how this nutrient travels through the
ecosystem to sustain life on Earth.
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 ...
May 25, 2015 ... You will learn about "Nitrogen Cycle" in this video. Nitrogen constitutes around
78% of the air. However, atmospheric nitrogen cannot be used ...
Nitrogen Cycle. Nitrogen is both the most abundant element in the atmosphere
and, as a building block of proteins and nucleic acids such as DNA, a crucially ...
If we had to pick a VIP of the air you breathe, it might be nitrogen! In this
BrainPOP movie, Tim and Moby take you on a tour of the nitrogen cycle. Explore