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MTEL General Curriculum Practice Exam

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Read the passage below; then answer the question that follows.
 
During the mid-1930s, farmers in northern Illinois and eastern Iowa became the first  U.S. food producers to adopt hybrid corn. Within a decade, the new seeds were being planted by corn growers throughout much of the Midwest. By mid-century, use of the hybrid varieties had spread to nearly all corn-growing areas of the United States and southern Canada.

The passage above best illustrates the meaning of which of the following geographic concepts?
  1. Specialization
  2. Diffusion
  3. Interdependence
  4. Acculturation
Explanation
Correct Response: B. Diffusion is the process by which ideas, products, and innovative practices—such as the use of hybrid varieties of corn—spread over geographic areas. Specialization (A) is the separation of tasks within a system.   Interdependence (C) refers to relationships in which two or more groups or societies are dependent upon one another, and acculturation (D) is the process by which a culture group adopts the traits of a host society to which it has immigrated. 
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