In 2008, gas and oil accounted for roughly______ of Russia's export earnings.
A. 2/3
B. 1/3
C. 2/4
D. 1/4
Answer: A. 2/3
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Individual restraints when using common-pool resources are necessary to prevent
A) increases in the maximum sustainable yield. B) the tragedy of the commons. C) a shift from productive to consumptive use of resources. D) shifts in the carrying capacity of natural populations.
Where is the Hayward Fault, and why is it dangerous?
What will be an ideal response?
Which of the following is true about the polarities of the C-O and O-H bonds?
A) Neither the C-O nor the O-H bond is polar. B) The C-O and O-H bonds are equally polar. C) Both bonds are polar, but the C-O bond is less polar than the O-H bond. D) Both bonds are polar, but the O-H bond is less polar than the C-O bond.
What generates internal waves?
A) Wind energy B) Tidal energy C) Ocean currents D) All of these choices