43) There is ta A. 1 percent B. 2 percent chance of a “50-year flood\" occurring

Question

43) There is ta A. 1 percent B. 2 percent chance of a “50-year flood" occurring in any given year. C.5 percent D. 10 percent 44) Though the proportions vary from one region to another, globally what accounts for the greatest demand for water? A. industry B. domestic use C.crop irrigation D. governments 45) In a well drilled into a(n) surrounding water table. A. aquiclude B. aquifer C. confined aquifer ng water table. the water ill rise to the level of the D. unconfined aquifer 46) Precipitation that drains over the land or in stream channels is termed A. infiltration B. surface runoff C.streamflow D. groundwater 47) Which one of the following is an example of climatic change? A. an extremely hot summer B. three very cold winters in a row C. a very intense hurricane season D. All of these indicate that the climate is changing E. None of these are definitively indicative of climatic change. 48) This graph of Earth's climate record shows that temperatures have past 2 million years. A. fluctuated greatly B. remained constant C. been slowly decreasing D. been slowly increasing overall, in the 49) How far back does the recent record of atmospheric carbon dioxide measurements extend A. about 1000 years B. about 100 years C. about 50 years D. about 10 years 50) What would be the effects of continued global warming over the next century? A. retreat of glaciers B. calving of large icebergs from ice shelves C. shrinking of some animal habitats D. expansion of some animal habitats E. All of the above are possible effects of global warming asthenosphere is known as continental drift C. polar wandering D isostasy BONUS QUESTIONS 51) The condition whereby the lithosphere "floats" on the A. seafloor spreading times mone energy 52) A magnitude 8 carthquake relcases approxvinately

Explanation / Answer

43) 1%

44) Crop irrigation

45) unconfined aquifer

46) Surface runoff

47) All of these

48)

49)

50) calving of llarge icebergs from ice shelves

51) seafloor spreading

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