"Blue-baby" syndrome is a consequence of excess ________ in the water supply
A) chlorine B) E. coli C) carbon D) phosphates E) nitrates
E
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Generally, the plight of international refugees is better than that of internally displaced persons
Indicate whether this statement is true or false.
Which of these four numbered features on the surface or in a cave is a stalagmite?
A) 1
B) 2
C) 3
D) 4
E) None of these are correct.
At the 500 mb level, the amount of oxygen inhaled in a single breath is __________ of that
inhaled at sea-level. a. about the same b. about one-quarter c. about one-half d. about three-quarters
Until around 300 B.C., the world's largest settlements were in
A) Egypt and China. B) Mesopotamia and Egypt. C) Mesopotamia and the Indus Valley. D) the Indus Valley and the Yangste Valley. E) the Yangste Valley and Egypt.