By breathing nitrogen from the atmosphere (it makes about 70ish percent of our atmosphere)
<span>Na is the chemical symbol for sodium. Na+ is formed when sodium loses an electron from its outer shell (the number of electrons and protons is now unbalanced, giving an overall positive charge) and becomes a sodium ion. Losing an electron happens when a metal reacts with a non metal.</span>
I would say that this would be 2. Breaks down existing landforms to create new ones
I don't know maybe it is a white blood cell
There was no sunlight, in one way or another sunlight is the source of almost all life on the surface of the earth
