Which of the following is not a product of the chemical weathering of potassium feldspar?
A) clay B) potassium ions C) iron oxide D) silica
C
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Which of the following molecules is most likely to show a dipole-dipole interaction?
A. CH4
B. H-C 
C-H
C. CO2
D. H2S
E. none of the above
The following statements pertain to the collection of data for the purpose of making population projections. Which statement is correct?
A. Although not identical, approximately 75% of the world collects accurate census population data. B. The region of the world with the least reliable population data due to its inability to collect data is Africa. C. Data collection is universal and identical throughout the world. D. The homeless problem in the world is insignificant and plays no role in population projections.
Thunderstorms are rare in the tropics
Indicate whether the statement is true or false
Which way is groundwater flowing in this cone of depression?
A. upward and away from the well in all directions B. downward and toward the well from all directions C. from right to left across the entire area D. from left to right across the entire area