Final answer:
Bars serving just alcohol can be both true and false depending on location and historical context, such as during the 19th century where bars offered various services, or during Prohibition when alcohol was banned. Today, legality of alcohol service varies globally.
Step-by-step explanation:
The statement that bars can serve just alcohol is both true and false and depends on historical and geographical context. For instance, in the 19th century, establishments like saloons and taverns often provided not only alcohol but also other services such as food, job information, and social spaces for discussions. This aspect of social culture revealed that alcohol played a role in community building and offered relief after a long day's work. However, during Prohibition in the United States, alcohol was illegal, and speakeasies operated secretly to serve beverages. In modern times, the sale of alcohol may vary by location; for example, in some Middle Eastern countries where Islam is prevalent, the sale and consumption of alcohol are banned entirely.