Photochemical smog forms when ________ and ________ are trapped by a thermal inversion and ozone, nitrogen dioxide and PAN form.

A. volatile organic compounds; oxides of nitrogen
B. carbon monoxide; sulfur dioxide
C. carbon dioxide; lead
D. hydrocarbons; lead


Answer: A

Environmental & Atmospheric Sciences

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Which of the following statements is TRUE regarding the population pyramids of Ethiopia and South Africa?


A) There are roughly an equal number of males and females in their 30s in South Africa
B) Ethiopia is growing faster than South Africa
C) South Africa is growing faster than Ethiopia
D) South Africa has a younger population than Ethiopia
E) Women have more children in South Africa than do women in Ethiopia

Environmental & Atmospheric Sciences

Among the following choices, the closest match for a divergent boundary is ________

A) the East African Rift valley B) the San Andreas Fault C) the Appalachian Mountains D) the Mariana Trench

Environmental & Atmospheric Sciences

The contemporary view of nature dominant in the United States is most strongly linked to the

A) Judeo-Christian tradition, in which nature is to be dominated or tamed by Man. B) North American Indian tradition, which emphasized the interrelatedness of the natural world. C) romantic philosophies of Henry David Thoreau, in which all creatures have divine qualities— humans are not exceptional. D) transcendental poet Ralph Waldo Emerson, who encouraged a mystical and spiritual alternative to the primitive and savage life.

Environmental & Atmospheric Sciences

Environmental problems whose dimensions include differential exposure to risk from toxic wastes and air pollution or lack of access to the natural beauty of parks based on ethnicity or race are issues of ________

A) paradigm shifts B) moral relativism C) environmental justice D) ecocentrism E) anthropocentrism

Environmental & Atmospheric Sciences