What countries produce tantalum, a mineral used in cell phones?
A) Rwanda
B) South Africa
C) Democratic Republic of the Congo
D) Rwanda and Democratic Republic of the Congo
E) all of the above
Answer: D
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The granite plutons of the Sierra Nevada Mountains of California formed because ____
a. a continental-continental collision caused melting of the North American plate. b. subduction of an oceanic plate beneath the North American continent produced granitic magmas that cooled deeper in the crust. c. the San Andreas strike-slip fault caused melting of the North American plate. d. there was no plate boundary near western North America. e. volcanoes spewed forth huge amounts of granite.
Any of the so-called lower primates, including tree shrews, lemurs, lorises, and tarsiers:a
australopithecines d. hominoids b. prosimians e. anthropoids c. hominids
What specifically describes the balance between the lithosphere floating atop the asthenosphere?
A) Buoyancy B) Isostatic equilibrium C) Density stratification D) None of these choices
In late spring, ____________________, regions of strong contrasts in humidity, frequently form over Oklahoma and Texas
Fill in the blank(s) with correct word