If the Concentration of Gold in Seawater Is 2

question 93

Multiple Choice

If the concentration of gold in seawater is 2.0 milligram per ton of sea water and the mass of the ocean is 1.5 × 10¹⁸ tons,how much gold is in the ocean?

• A)3.0 × 10¹² kg
• B)3.0 kg
• C)300 g
• D)36 mg
• E)3000 lb

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