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Author Question: Which marine resource is too expensive to recover at this time due to the low market value of the ... (Read 74 times)

tsand2

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on: Aug 22, 2018

Which marine resource is too expensive to recover at this time due to the low market value of the resource?
  a. Magnesium compounds
  b. Manganese nodules
  c. Sand and gravel
  d. Salt
  e. Rare-earth elements



Question 2

What is the largest known reservoir of hydrocarbons on Earth?
  a. Coal deposits
  b. Oil reserves
  c. Ethane pools
  d. Natural gas
  e. Methane hydrate



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srodz

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Reply #1 on: Aug 22, 2018
Answer to Question 1

b

Answer to Question 2

e


tsand2

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Reply 2 on: Aug 22, 2018
Excellent

essyface1

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Reply 3 on: Yesterday
Gracias!

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