Final answer:
An 'author and you' question requires combining text information with your own knowledge. The question 'Other than snowfall, what might be another reason for canceling or delaying school?' fits this category as it asks the reader to think about other possible unsafe conditions that could lead to school closures. The historical significance of radio and television is evident in their roles as immediate sources of public information.
Step-by-step explanation:
An example of an "author and you" question about the announcement is "Other than snowfall, what might be another reason for canceling or delaying school?" This question encourages the reader to use information from the text and combine it with their own knowledge or experience to infer other potential reasons for school cancellations. Possible reasons could include extreme weather conditions other than snow, such as hurricanes or ice storms, widespread power outages, or emergency situations such as a chemical spill near the school. The text implies that unforeseen unsafe conditions could warrant cancellation or delay, so the reader must think beyond the given example of heavy snowfall.
Regarding the reliability of radio and television for announcements, it is historically evident that both mediums have played a crucial role in providing immediate, widespread information to the public. Radio news has been a significant source of information since the 1920s, evolving during events such as World War II, when immediacy of news was essential. Television also serves as a communal platform that extends beyond entertainment to provide critical updates, much like when people learned of the events of September 11, 2001. Despite the growth in usage of television, radio still maintained its importance through music, talk shows, and sports broadcasting, and later reaffirmed its significance in politics with the rise of political talk shows.