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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 72 times)

tsand2

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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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Answer to Question 1

b

Answer to Question 2

e




tsand2

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Reply 2 on: Aug 22, 2018
Gracias!


duy1981999

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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