All of the Above
All of these tips will help make the test day go smoothly and increase the chance of you performing well. Making sure you've slept and eaten, and have water and a snack available to you will help you avoid being hungry or distracted/tired during the test. Having all forms completed will make signing in and out less stressful (one less thing to worry about!), and having a sweater will help you feel comfortable in case the room gets cold or warm.
The author shifts away from his personal journey because this is not a description of his personal journey, and to focus on it would be to detract from the facts and purpose of the story (Indian culture). The pollution is causing the building to deteriorate, and it is a casualty because it is a unintended consequence from humans living there.
In what story are you specifically referring to
