For every integer increase of magnitude on the Richter Scale, ____________________ times more
energy is released by the earthquake. Fill in the blank(s) with the appropriate word(s).
thirty
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What are the main climatic influences for this station (air pressure, air mass sources, degree of continentality, temperature of ocean currents)?
Köppen climate classification symbol: ________________
name: ________________
explanation for this determination: ________________
Representative biome (terrestrial ecosystem) characteristic of region: ________________
characteristic vegetation: ________________
Afghanistan is important to the world drug trade primarily because
A) it produces about 90 percent of the world's opium. B) U.S. troops consume most of the opium grown there. C) of the inability to grow maize. D) of the proximity of the Russian market for illicit drugs. E) of the desire of local farmers to fund terrorist organizations.
Which of these terms represents a layer of the atmosphere defined by function rather than temperature?
a. thermosphere b. troposphere c. ionosphere d. stratosphere e. mesosphere
Plankton that measure between 0.2 to 2 microns are classified, based on size, as which of the following?
A) Macroplankton B) Phytoplankton C) Picoplankton D) Virioplankton E) Zooplankton