Which element is most commonly dissolved in seawater?
A) gold
B) chlorine
C) magnesium
D) sodium
Answer: B) chlorine
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Wave speed of deep-water waves depends only on ________
A) wave drift B) wave frequency C) wave period D) waveform E) wavelength
Which of the following best describes a mass wasting event referred to as a flow?
A. mixture of rock and snow B. material moving down-slope along a surface C. material moving as a viscous fluid D. material tumbling through air or down a steep slope
The ability for households to move within a country is defined as ________
A) residential mobility B) internal mobility C) internal migration D) intra-country migration E) relocation migration
Which of the following is a reasonable value for the pKb of an aliphatic amine?
A) 1.5 B) 3.5 C) 6.5 D) 8.5