Which of the following best matches the description?Gas emitted from certain kinds of rocks.
A. acid deposition
B. secondary air pollutants
C. oxides of nitrogen
D. particulates
E. ozone
F. greenhouse effect
G. primary air pollutants
H. radon
I. photochemical smog
J. thermal inversion
K. sulfur dioxide
Answer: H
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Which part of a stream will experience a build up of sand and gravel?
A. Cutbank B. Meander C. Point bar
The year 2008 revealed one of the economic risks of continued reliance on oil, when
A) 52% of the oil refineries in the United States had to shut down. B) the Alaskan pipeline ruptured, reducing oil supplies in the United States by 37%. C) gasoline prices reached new highs. D) shipments of oil from overseas were reduced by 46%.
Insular Southeast Asia lies in the tropics
Indicate whether the statement is true or false
Subsidies and tax breaks for environmentally harmful businesses cost the world's taxpayers ____ per year.
A. $2 trillion B. $200 billion C. $150 billion D. $1 billion E. $500 million