Besides the distance to the epicenter of an earthquake, what are two other things that a seismograph
can tell us? What will be an ideal response?
A seismograph records that there was an earthquake, the time of the earthquake, and the magnitude of
the earthquake
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Human water withdrawals have been increasing at about ________ rate as worldwide population growth.
A. half the B. the same C. one-third the D. three times the E. twice the
When the EPA began risk assessment in the mid-1970s, it was primarily concerned with
A) the safety of public transportation systems. B) interactions between people and wildlife in national parks. C) cancer risks associated with pesticides and toxic chemicals. D) accidents associated with lost time on the job and workers' compensation.
The boundary where two air masses converge is called.
a. a cyclone b. a tornado c. an isobar d. a front
What has been determined by studies of gas bubbles in polar ice sheets?
A. A poor correlation between atmospheric temperature and carbon dioxide concentration over time B. Decreasing levels of atmospheric carbon dioxide over time C. A good correlation between volcanic gases and sea level change over time D. A repetitive pattern of glacial and interglacial cycles over the past 800,000 years