n An Inconvenient Truth, the most likely reason the author uses the heading A Silent Alarm is to

Responses

use an image that all readers can visualize.
show there is a problem that many do not know about.
to bore the reader.
frighten readers so they will take action.

The most likely reason the author uses the heading "A Silent Alarm" is to show that there is a problem that many do not know about.

The most likely reason the author uses the heading "A Silent Alarm" in An Inconvenient Truth is to show that there is a problem that many do not know about.

The most likely reason the author uses the heading "A Silent Alarm" in "An Inconvenient Truth" is to show that there is a problem that many do not know about. To understand this, we can analyze the purpose and effect of using such a heading.

To start, let's break down the different options provided:

1. "Use an image that all readers can visualize": While headings can certainly serve this purpose, it is not the primary reason for using specific headings like "A Silent Alarm."

2. "Show there is a problem that many do not know about": This option is the most likely reason for the choice of the heading. "A Silent Alarm" suggests that there is an issue that is not easily noticed or acknowledged, indicating that there is an urgent problem that readers may be unaware of. This creates a sense of curiosity and intrigue, encouraging readers to dive deeper into the content.

3. "To bore the reader": The purpose of a heading is usually to engage the reader, not to bore them. Using a heading like "A Silent Alarm" would generally be counterproductive if the intention is to bore the reader.

4. "Frighten readers so they will take action": While the heading "A Silent Alarm" might evoke a sense of unease or concern, the primary objective is not to frighten the reader. The purpose is more likely to inform and raise awareness about a pressing issue, ultimately motivating readers to take action.

Considering these options, the answer that best aligns with the purpose of using the heading "A Silent Alarm" is "show there is a problem that many do not know about." This choice effectively captures readers' attention and emphasizes the urgency and importance of the issue at hand.