Most of the world's aluminum ore is derived from:
a. pedocals
b. pedalfers
c. laterites
d. none of the above
d
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Migrating midlatitude anticyclones typically
A) move easterly driven by the prevailing westerlies. B) move westerly driven by the prevailing westerlies. C) move easterly driven by the prevailing easterlies. D) move westerly driven by the prevailing easterlies.
Metamorphic rock is formed by changing the nature of minerals of preexisting rocks. What could the preexisting rocks be?
A) metamorphic B) igneous C) metamorphic, igneous, or sedimentary D) sedimentary
What do wastewater treatment facilities primarily depend upon for the breakdown of pathogenic organisms and organic materials in wastewater?
A) Large amounts of chlorine bleach B) Decomposers and detritus feeders C) The neutralizing effects of high levels of oxygen D) Large amounts of antibiotics and disinfecting chemicals
To help distinguish a storm’s air motions, a Doppler radar can display ____
a. amount of radiational cooling b. wind velocities in color c. lightning streaks d. funnel clouds e. the amount of solar energy of a given area