Today, ________ has the worst acid deposition problem, primarily because of ________
A) Sweden; methane emissions from cattle and natural gas heating
B) the United States; soil dust aerosols
C) European Union nations; tropospheric ozone
D) China; coal-fired electrical and industrial plants
E) Tehran; burning fuel wood
D
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Imagine that all minerals found in rocks were the same color. What information would you no longer be able to infer?
A. Composition B. Cooling rate C. Texture
As S- and P-waves travel farther, ____
A)their intensity increases B)the surface waves catch up C)they overtake the surface waves D)the P-S time interval increases E)the P-S time interval decreases
Currently the rate of world population growth:
a) is climbing exponentially. b) is climbing arithmetically. c) is falling gradually. d) is plummeting as a result of development and birth control technologies.
Most people in the region are engaged in __________.
a. subsistence agriculture b. gold mining c. diamond mining d. all of these e. oil extraction