I think it's pacific ocean, alantic ocean, indian occean, antartic ocean, and atic ocean hope this helps
Answer:
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Explanation:
The people and illegal transporting of goods if they wanna regulate trade
I assume you meant which method is least reliable for identification.
If so, the answer would be COLOR, since there are many minerals that are different, yet share similar color. So it wouldn't be reliable to identify a mineral based off it's color.