5. Which sentence uses an informal tone to appeal to an audience of high school students? 1. Are you concerned about whether you'll still be popular and included this year at school or whether you'll feel like an outcast-or worse, be picked on? 2. Instead of being centered on shared values and beliefs, many cliques tend to focus on maintaining their status and popularity. 3.Cliques can be very limiting in the way they control how members look, think, dress, and behave. 4.Being a friend means being respectful, fair, interested, trustworthy, honest, caring, and kind.

4. Being a friend means being respectful, fair, interested, trustworthy, honest, caring, and kind.

Explanation:

When someone is holding a speech, they need to pay attention to what their audience is like. The tone a speaker will use will not be the same when they're speaking to an audience that consists of scientists and one that consists of high school students.

Students mostly use informal language. Informal language is more casual, spontaneous, and personal than formal language, which is always carefully thought out and mostly used in a professional or academic setting.

The sentence that uses informal language is the fourth one. The vocabulary and sentence structure are simple and similar to what we would hear in everyday situations, which is typical for informal language.

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