Remains or traces of prehistoric organisms preserved in rocks:a
fossil d. natural selection
b. evaporite e. mineral
c. formation
A
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The ethnic heritage of most African Americans has roots in
A) forced migration from Africa. B) common language traditions. C) skin color, facial features, and hair type. D) living in central urban locations. E) migration from Europe to North America.
Which of the following bonds is the most polar?
A) H-F B) H-Cl C) H-Br D) H-I
Which of these regions is high because of subduction of an oceanic plate?
A. 1, Andes of South America B. 2, East Africa C. 3, Tibet D. None of these choices are correct.
Sometimes, the maximum pollutant levels permitted in wastewater by U.S. Environmental Protection Agency standards have been lower than naturally occurring concentrations of the same elements in local waters.
Answer the following statement true (T) or false (F)