Lead enters the atmosphere as a particulate pollutant. This is a problem because lead ________
A) is a precious metal, and it is being lost to the atmosphere
B) can become attached to radon
C) causes excess nutrification of waterways, resulting in eutrophication
D) will cause the ozone hole to increase
E) causes central nervous system damage in humans
E
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The Superfund program paid
a. to identify and clean up hazardous-waste dump sites b. to monitor hazardous wastes c. for testing for lead in paint, water, and air samples d. the doctors' bills and lawyers' fees for pollution events e. all of these answers
An organism's response to a particular pollutant will depend solely on its sensitivity to the quantity of that pollutant
a. True b. False
Worst-case climate model projections indicate that up to half the world's species could go extinct this century.
Answer the following statement true (T) or false (F)
One reason the temperature decreases with increasing altitude in the troposphere is ________
A) the water vapor in the troposphere is heated by terrestrial radiation B) the chemical reaction that forms ozone gives off heat and ozone increases in concentration toward the upper troposphere C) the solar radiation is absorbed by ozone in the stratosphere D) molecular spacing increases with increasing altitude