Brown (155) reports that much toxic material is illegally dumped
Violators have loosened tank-truck valves and dumped contaminants along the road (a New York company spilled out polychlorinated biphenyls—PCBs—from a truck onto 270 mi of North Carolina highway). What are the attitudes of company officials that could tolerate this atrocity? Is indiscriminate dumping a national pastime? Where do you dispose of trash and garbage on long car trips?
This is another example of the tragedy of the commons. People who dump are
putting the disposal cost as a burden to others. Company officials may just be viewing
themselves as good managers for lowering the cost to the company for disposal. They
probably do not consider the cost they pose for people exposed to toxic chemicals,
mutagens or poisons. This can happen because they think of everywhere as one great dump,
free to use. In an area having excess land—that is, few people—such an attitude is general.
When people are packed together, as they are in much of the world, the costs of others
actions become clearer.
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To orient the LCMs of a polymer, it must be rapidly deformed just above the _________transition temperature and below the melting temperature.
Fill in the blank(s) with the appropriate word(s).
The maximum temperature on the Kelvin scale is called ________.
A. gamma temperature B. absolute energy C. the vapor point D. absolute zero E. There is no maximum temperature on the Kelvin scale.
In a circuit powered by a battery it is correct to say that electrons flow
A) from the battery and into the circuit. B) from the negative terminal to the positive terminal of the battery. C) through both the battery and the devices making up the circuit. D) none of the above
The climatic zones of Pangaea ranged from
A) glaciation in the south, and a mild temperate climate in the north. B) cold, dry temperatures in the north, and warm, tropical temperatures in the south. C) humid uplands in the north, and drier, desert like conditions in the south. D) widespread glaciation in the north, and a warm, tropical climate in the south.