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The 17 ____ Include Scandium, Yttrium, and 15 Lanthanide Chemical

Question 27

Multiple Choice

The 17 ____ include scandium, yttrium, and 15 lanthanide chemical elements, including lanthanum.

A) semi-precious minerals
B) metallic ores
C) non-metallic ores
D) rare earth metals
E) strategically important minerals

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