Answer:
The difference between carbon atoms in diamond and graphite is just its structure.
In diamond, carbon atoms are more organised and, therefore, a stronger structure are built.
In graphite, carbon atoms are less organised, as a result, its structure is not that strong.
I can answer the first one, being options 2 and 5. The second question I am not sure about. I would think option 1, since there are less species and organisms on the island, so there might be less biodiversity.
