If a chemical is not very abundant in the ocean but has a high rate of delivery to the ocean from land sources, it will have a ________ residence time in the ocean and will ________ become part of the seafloor sediments.
A. short; quickly
B. variable; variably
C. long; quickly
D. long; slowly
E. short; slowly
Answer: A
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How many electrons are gained or lost in the following half-reaction? Cl2 ? 2 Cl-
A. 2 electrons are lost B. 1/2 electron is gained C. 1/2 electron is lost D. 2 electrons are gained E. 4 electrons are gained
Turbidity currents deposit sediments in ____ beds with ____
a. graded; fine sediments on top and coarse sediments on bottom b. stratified; fine sediments on top and coarse sediments on bottom c. graded; coarse sediments on top and fine sediments on bottom d. cross; fine sediments on top and coarse sediments on bottom e. cross; coarse sediments on top and fine sediments on bottom
Attracting talented individuals is important for a city, in part because these individuals are:
A) those who make the city famous B) responsible for promoting economic innovation C) those who pay the largest share of taxes while sacrificing the most D) those who run for political office E) responsible for most of the high-tech jobs created
The expansion of the African American clusters known as Ghettos was made possible mostly by
A) the emigration of whites known as "white flight." B) government assistance for housing in these areas. C) the building of high density housing units. D) land that was previously not used for housing. E) the emigration of Hispanics.