Banded iron formations are composed of almost 99 percent silica with only minor iron impurities
that give a streaked or banded appearance. Indicate whether the statement is true or false.
F
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What do workers in countries with cheap labor use to recover valuable metals from e-waste?
A. Lead B. Sharp knives C. Heat D. Acid E. Mercury
Which of Ullman's three essential conditions for spatial interaction is most likely to be an influence upon migrants who are more influenced by push factors to leave an origin than the pull factors of a destination?
A. intervening opportunity B. complementarity C. transferability D. none of these
The process of sequential land use focuses on
A) reclamation of land from previous uses for new uses B) sequences of land use that involve increasing levels of contamination C) sequential use of land for similar purposes D) preservation of scenery for subsequent land uses
The occurrence of contact metamorphism would be direct evidence for
A) cementation of sedimentary rock. B) the local intrusion of magma. C) regional plate collision. D) lithification of clastics.