A situation where a system acquires a new stable set of conditions significantly different from the
original ones is an example of which type of feedback?
a. positive
b. negative
c. run-away
d. formative
e. cumulative
C
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When a boxer moves into an oncoming punch, the force experienced is
A. increased. B. decreased. C. no different, but the timing is different. D. all of the above
Which of the statements below is the best explanation for the pattern of diffusion shown in the maps?
A) Early migrants were reluctant to move into the countryside since the city was all they knew. B) African Americans first migrated to neighborhoods where other African Americans lived. C) Baltimore passed a law in 1940 allowing African Americans to migrate. D) Growth resulted from natural increase in the African American population. E) Baltimore was the destination of large numbers of refugees.
Make a list of all the different North American regions covered in this textbook by browsing through the book's table of contents. Then choose any one of these regions to examine more closely for this exercise
After examining the regional map of your selected region at the beginning of the chapter that focuses on it, speculate on some of the subregions that may be located within this larger region. List each of these subregions on a piece of paper and then compare them to the map of your selected larger region. How might this region, and the subregions that are located within it, be useful in helping to explain what is meant by the geographic concept of scale?
Smelting of iron ore involves ________
A) washing the ore with acid to extract iron B) oxidizing iron to ferric oxide and then adding silicon and boron C) dissolving the ore in hot water to separate iron and aluminum D) heating the ore beyond iron's melting point and combining the material with carbon E) crushing and heating the ore to its melting point