There are only a few ways in which nitrogen, which is relatively inert, can be
combined with other elements. Nitrogen is essential to living things and,
because most organisms cannot use nitrogen that is not combined with other
elements, nitrogen fixation is important to the continuation of life on earth.
combined with other elements. Nitrogen is essential to living things and,
because most organisms cannot use nitrogen that is not combined with other
elements, nitrogen fixation is important to the continuation of life on earth.