Which of the following statements about regions is true?
A) All regions have precise boundaries.
B) Everyone agrees on the extent of all regions.
C) Geographers decide what phenomena to use to define a region.
D) Features used to define regions must be clear and distinct on the landscape.
Answer: C
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All of the following statements describe field research except
a. It involves going into natural settings to observe the structure of ecosystems. b. It is sometimes called "muddy-boots biology". c. It has provided very little in the way of knowledge about ecosystems. d. Most of what we know about ecosystems has come from such research. e. It involves measuring the structure of ecosystems and what happens in them.
If you need 3.01 × 1023 molecules of sucrose, how many liters of a 4.00 molar solution would you need?
A. 0.250 L B. 0.125 L C. 1.00 L D. 4.00 L E. none of the above
Explain the mechanics of solifluction and the landforms expected as a result of solifluction
What will be an ideal response?
The pattern of immigration to the United States over two centuries shows that
A. Europe have always been the primarily source region for immigrants. B. No immigrant population yet equals the number of slaves brought from Africa in the 18th and 19th centuries. C. at different times, immigrants tended to come from one region more than others. D. wars overseas have not affected the patterns of immigration.