About 50 percent of the 125,000 km3 (30,000 mi3 ) of freshwater in lakes is
A) located in just seven lakes. B) located in the 40 largest lakes.
C) in the Great Lakes. D) saline.
A
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The temperatures in a fractionating tower at an oil refinery are important, but so are the pressures. Where might the pressure in a fractional distillation tower be greatest, at the bottom or at the top? Defend your answer
A) The pressure is greatest at the bottom because the higher temperature means a greater number of vaporized molecules. B) The pressure is greatest at the top because the higher temperature means a greater number of vaporized molecules. C) The pressure is greatest at the bottom because the lower temperature means a greater number of vaporized molecules. D) The pressure is greatest at the top because the lower temperature means a greater number of vaporized molecules.
What do squid use as a decoy defense mechanism?
A) Cnidoblasts B) Internal shells C) Coagulated ink D) Propulsion
Environmental policies and regulations are approved at the ________
A) state and federal levels B) local level only C) local, state, and federal levels D) federal level only
La Niña conditions along the Equatorial Pacific are characterized by ________.
A. lower sea surface temperatures in the east and higher in the west B. cooler surface-water temperatures in the Eastern Equatorial Pacific than during an El Niño event C. higher sea surface height in the east and lower in the west D. All of these are correct E. None of these is correct