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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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Mpron Mpron
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6 years ago
Examples of valuable nonmetallic minerals extracted by mining are ________.
 
  A) gold, platinum, copper
  B) sand, gravel, phosphate
  C) nitrogen, hydrogen, neon
  D) radon, radium, sodium
  E) lead, cadmium, mercury
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vazadirvazadir
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6 years ago
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Mpron Author
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6 years ago
Just got PERFECT on my quiz
ezsancheezy
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Yesterday
this is exactly what I needed
deathwing
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2 hours ago
You make an excellent tutor!
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