Ions are removed from seawater most effectively by ________.

A. freezing
B. evaporation
C. bacterial action
D. adsorption
E. None of these is correct; one method is not more effective than another.


Answer: D

Environmental & Atmospheric Sciences

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The radiant heat released from fires is a form of electromagnetic radiation.

Answer the following statement true (T) or false (F)

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The current interest in continental drift was started with the notion of seafloor spreading, which was proposed by Hess and Dietz in the ________

A) 1700s B) 1850s C) 1890s D) 1960s E) 1990s

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An acid is a chemical that

A. donates hydrogen atoms. B. donates hydrogen ions. C. donates hydronium ions. D. accepts hydrogen atoms. E. dissolves metal.

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