Author Question: What is the main mineral source of phosphorous in phosphate fertilizers? A) Topaz B) Calcite C) ... (Read 63 times)

c0205847

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What is the main mineral source of phosphorous in phosphate fertilizers?
 
  A) Topaz
  B) Calcite
  C) Kaolinite
  D) Apatite

Question 2

List three economic materials that can be profitably extracted from placer deposits.
 
  A) Gold, platinum, and tin
  B) Diamonds, iron, and quartz
  C) Sand, gravel, and silt
  D) Granite, basalt, and gabbro



heyhey123

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Answer to Question 1

Answer: D

Answer to Question 2

Answer: A



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