In the latter half of the 20th century, a significant population movement within the United States was toward the Sun Belt region. What was a main cause of this migration, and what challenge did it create?

The Sun Belt’s warm climate and growing industries attracted people seeking jobs, especially in areas such as manufacturing, defense, and services. The rapid population growth increased demand for limited resources, particularly water and energy. Thus, the choice describing job opportunities and pressure on resources is correct.

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