All of the provided readings can be used to determine mineral availability, with radioactivity highlighting certain radioactive minerals, magnetism indicating magnetic minerals, and gravity suggesting denser materials. Hence, the best answer is d. all of the above. ;
The answer to the question is d. all of the above , as radioactivity, magnetism, and gravity all serve important roles in determining mineral availability. Each method uses different scientific principles to indicate various minerals present in the ground. Understanding these methods is crucial for resource exploration and mining.
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