Which of the following is most porous?
A)sand
B)soil
C)gravel
D)silt
E)clay
E
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At present, after subtracting deaths from births, world population increases 1.2 percent per year for a doubling time of ________.
A. 140 years B. 14 years C. 280 years D. 70 years E. 58 years
Why do storm systems move from west to east in mid latitudes of the Northern Hemisphere?
A) The continents break up air flow that would normally be south to north and the Coriolis force turns the storms to the right, or toward the east. B) The prevailing wind is from the east, and the storm systems move toward the surface flow. C) The storms are steered by approximately west to east winds aloft that are approximately geostrophic winds produced by Coriolis forces. D) The prevailing wind is from the west.
Desalination has a number of problems, including ____.
A. reducing soil salinization on irrigated lands B. providing water in areas of scarcity C. land subsidence D. drying up rivers E. requiring massive amounts of energy to pump seawater through pipes
Full-cost pricing
A. could be implemented through government action. B. reduces the final cost of goods. C. would likely result in consumers making less environmentally sound choices. D. relies on making the market price higher than the true cost of a product or service. E. is unsustainable.