Geologists know that oceanic ridges are geologically very active because they ____.
a. have high heat flow
b. have many small earthquakes
c. are the site of recent volcanic eruptions
d. have many small earthquakes and are the site of recent volcanic eruptions
e. all of these
e. all of these
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The Kyoto Protocol is an international agreement designed to address the issue of:
A. the spread of AIDS. B. global poverty and underdevelopment. C. the emission of greenhouse gases. D. the militarization of space.
Worldwide reserves for most metals are projected to last
A. a few years. B. about 1000 years. C. a few decades. D. a few centuries.
Polluting industrial sites and hazardous waste dumps tend to be located disproportionately in communities populated by ____.
A. wealthy upper class B. wild animals C. middle class D. minorities E. politicians
During the 2010 Winter Olympics Canada did not have enough natural snow for some of the events. This was largely due to the fact that it was an El Nino year
Indicate whether the statement is true or false