What agency enforces air quality standards in the U.S.?
A. Environmental Protection Agency
B. Department of Natural Resources
C. Department of Energy
D. Council on Environmental Quality
Answer: A
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Explain why air temperature measurements must be taken in the shade
What will be an ideal response?
A volcanic breccia texture indicates that
A. the ash and pumice were hot and became compacted. B. the rock broke apart as it flowed. C. the rock cooled slowly. D. there was a lot of gas in the magma. E. the rock cooled quickly.
An earthquake of Richter magnitude 5 releases 32 times more energy than an earthquake of magnitude 4.
Answer the following statement true (T) or false (F)
The decrease in NOx emissions in the U.S. from 1970 to 2014 can be partially attributed to which of the following?
A) a decrease in the amount of nitrogen in the atmosphere B) the use of catalytic converters in motor vehicles C) a decrease in vehicle miles traveled D) the use of scrubbers in motor vehicles E) a decrease in the amount of energy consumed