Instructions: Choose one answer from each pair of selections. At night, cold air and pollutants move UPHILL FROM | DOWNHILL TO low-lying valleys
DOWNHILL TO
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A rough surface for infrared waves may be polished for
A. light waves. B. radio waves. C. both of these D. neither
Which of the following best matches the description?Air pollutant consisting of nitrogen and oxygen compounds.
A. ozone B. radon C. greenhouse effect D. acid deposition E. oxides of nitrogen F. photochemical smog G. primary air pollutants H. secondary air pollutants I. sulfur dioxide J. particulates K. thermal inversion
Waste incinerators ________
A) extend the life of landfills by decreasing waste volume B) ultimately increase the use of fossil fuels to generate electricity C) are able to eliminate the disposal of municipal solid wastes (MSW) D) increase the volume of MSW that must be buried in landfills
The Environmental Protection Agency was created in the mid-1980s
Indicate whether the statement is true or false