<em>Answer</em><em>:</em><em>Nitrogen fixation</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>nitrogen</em><em> </em><em>fixing</em><em> </em><em>bacteria</em><em>.</em>
because its the power house of the call
Answer:
This says that a very long time ago South Africa could have had glaciers and had a cold climate were as now South Africa has a very hot and humid climate.
Ionic bonds involve the gaining and losing of valence electrons between atoms, while covalent bonds involve the sharing of valence electrons between atoms