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. 3,000 lb
B. 300 g
C. 36 mg
D. 3.0 × 1012 kg
E. 3.0 kg
Answer: D
You might also like to view...
Which of the following does not describe a nuclear fission reaction?
A) The number of nucleons in the products is different from the number of nucleons in the starting material. B) The mass of the products is less than the mass of the reactants. C) The energy released is proportional to the mass difference in the system. D) All of the above describe a fusion reaction. E) None of the above describe a fusion reaction.
Air pollution levels that may be life-threatening within a few hours or days are termed:
A) high risk B) fast acting C) toxic D) acute
The value of currency compared with that of another country is called a eurocurrency
Indicate whether the statement is true or false
What are three examples of preexisting slip planes for translational slides?
A) Slumps, valleys, and mudslides B) Bedding planes, frost wedging, and permafrost C) Faults, bedding planes, and joints D) Water, ice, and crevasses