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Author Question: An example of a material that has been both a resource and a reserve, depending on abundance, ... (Read 61 times)

jon_i

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  • Posts: 549
on: Jul 15, 2018

An example of a material that has been both a resource and a reserve, depending on abundance,
  economic conditions, and mining technology, is:
  a. platinum.
  b. gold.
  c. petroleum.
  d. iron.
  e. all of the above



Question 2

Which of the following is an example of a mineral resource?
  a. sand
  b. gold
  c. petroleum
  d. salt
  e. all of the above



bubulittle310@msn.cn

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  • Posts: 281
Reply #1 on: Jul 15, 2018
Answer to Question 1

E

Answer to Question 2

E


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