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Author Question: What is the main mineral source of phosphorous in phosphate fertilizers? A) Topaz B) Calcite C) ... (Read 70 times)

c0205847

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on: Jul 15, 2018
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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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A


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