Figure 24.5
Explain the environmental significance of Chattanooga, Tennessee.
What will be an ideal response?
During the 1960s, Chattanooga was one of the dirtiest cities in the United States. In 1984, the city decided to get serious about improving its environmental quality and launched Vision 2000 in which citizens expressed what the city could be at the turn of the century. By 1995, Chattanooga had met most of its original goals with zero-emission industries located there, a fleet of quiet, zero-emission electric buses, and an innovative recycling program. More changes followed and Chattanooga has become one of the nation's strongest local economies, with a lower-than-average unemployment rate and rising property values.
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The demographic transition is a model of population change used to explain high population growth rates. According to the theory,
A) birth rates decline, eventually followed by a decline in death rates. B) death rates decline, eventually followed by a decline in birth rates. C) birth rates and death rates decline simultaneously. D) birth rates rise, eventually followed by a rise in death rates. E) death rates rise, eventually followed by a rise in birth rates.
In a wave of oscillation, an individual water molecule near the surface will move
A) counterclockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere. B) in a smaller vertical circle than a water molecule submerged deeper in the wave. C) in a larger vertical circle than a water molecule submerged deeper in the wave. D) clockwise in the Northern Hemisphere, counterclockwise in the Southern Hemisphere.
A sea-level rise of 1 centimeter commonly causes
A) less than 1 meter of shoreline retreat. B) less than 1 meter of shoreline sedimentation. C) more than 1.5 meters of shoreline sedimentation. D) more than 1.5 meters of shoreline retreat.
Concern about exploiting these is that disturbing the material by mining may release potent greenhouse gases into the atmosphere.
A. gas hydrates B. tar sand C. oil shale D. kerogen