Abiome that is very characteristically lacking in water; arid is know

1)    "way light reflects from a mineral" —  luster ;

2)  "way a mineral breaks under stress " — cleavage ;

3)  "reveals true, natural color of a mineral
                (note: when in powdered form) — streak ;

4)  "least reliable property for identification" — color ;

5)    "measured using the mohs scale" —  hardness .

The answer is 148, i can't really explain it, i got frustrated and guessed because all of my math was not giving me any of the answer choices

The oceanic islands primarily support themselves by living off the sea, that is through fishery, transporting goods across the sea and any other such activity that can provide for the families.