The effects of mass wasting can be minimized by ____
A)building retaining walls
B)installing seismometers to detect earthquakes
C)building only on slopes where rocks dip in the direction of the slope
D)adding mass to stabilize a slope
E)eliminating building restrictions
A
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What kind of heat pump uses the constant temperature of the earth as a source of heat in winter and as a store for heat in the summer?
A. geothermal B. solar C. wind D. hydropower E. biofuel
Which of the following statements about leachate is false?
a. Leachate is also known as garbage juice with a moderately uniform composition. b. Leachate should be considered dangerous to the environment until established otherwise. c. Contaminant plumes of leachate can extend up to kilometers from their source. d. The size and shape of leachate contaminant plumes are related to groundwater flow velocity. e. Leachates are classified based on the chemical reactivity and/or density of the leachate.
In which of the following classes of organic compounds must there be at least two oxygen atoms?
A) carboxylic acids B) carboxylic esters C) both a and b D) neither a nor b
Japan, a wealthy country with universal health care, would be in the ________ stage of the Demographic Transition
Fill in the blank(s) with correct word