Answer:
The most commonly used methods are: published literature sources, surveys (email and mail), interviews (telephone, face-to-face or focus group), observations, documents and records, and experiments.
Explanation:
The Twenty-sixth Amendment lowered to voting age to 18.
Many campaigners used "Old enough to fight, Old enough to Vote".
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Answer:
The scientific revolution laid the foundations for the Age of Enlightenment, which centered on reason as the primary source of authority and legitimacy, and emphasized the importance of the scientific method.
Answer:
The first temples were mostly mud, brick, and marble structures on stone foundations. The columns and superstructure (entablature) were wooden, door openings and antae were protected with wooden planks. The mud brick walls were often reinforced by wooden posts, in a type of half-timbered technique.