The largest recorded earthquake (Chile) was between ________ and ________ on the Richter scale
Fill in the blank(s) with the appropriate word(s).
Answer: 9, 10
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In the context of urban systems, basic tenets of central place theory include all of the following except
A) people will travel farther for more expensive, less frequently purchased goods. B) the smallest settlements provide goods and services that meet everyday needs. C) the larger the settlement, the greater the variety of specialized goods and services. D) settlements of similar population sizes are grouped together. E) the larger the settlement, the farther apart it will be from others of a similar size.
The updated model of the limits to growth suggests that changed public policies actually could produce a sustainable future.
Answer the following statement true (T) or false (F)
Since the turn of this century, CO2 in the atmosphere has:a
been increasing in concentration. b. been decreasing in concentration. c. remained at about the same concentration from year to year. d. disappeared entirely.
Global climate change threatens coral reefs by
A) decreasing the temperature and increasing the pH of the oceans. B) decreasing both the temperature and the pH of the oceans. C) increasing the temperature and decreasing the pH of the oceans. D) increasing both the temperature and the pH of the oceans.