This globe, from the opening two-page spread of the Climate chapter, shows average annual precipitation (blue and green are highest; tan is lowest). What is the main factor causing northern Africa to have very low amounts of precipitation?
A) Trade winds
B) Westerlies
C) Downward flow of dry air in subtropics
D) Upward flow of dry air in the mid-latitudes
C) Downward flow of dry air in subtropics
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The predominant language in Northern Africa is the
A. Arabic B. French C. Italian D. Turkish
In the process of a magma cooling and crystallizing, if the original melt contained large amounts of iron, why isn't quartz a ferromagnesian mineral?
What will be an ideal response?
Which agent of transport below is least likely to round clasts off and separate them by size as they transports and deposits materials?
A. glacier B. wind C. beach waves D. running water
Which of the following developments of cultural eutrophication would occur last?
a. fish kills b. blooms of algae c. increase in aerobic bacteria d. increase of plants such as duckweed e. increase in anaerobic bacteria