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31. is one of the principal techniques of the individual
prospector for recovering gold and diamonds
in placer (alluvial) deposits​


Sagot :

_______is one of the principal techniques of the individual

prospector for recovering gold and diamonds

in placer (alluvial) deposits

ANSWER:

PANNING

Panning is one of the principal techniques of the individual prospector for recovering gold and diamonds in placer (alluvial) deposits.

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