Hi. Some of these questions require a personal answer, which is created by you based on your own opinions. In that case, I'll introduce you to answers that can be used as a template for you to create your own answers. I hope this is helpful.
1. It is important to imagine a larger audience when writing, to stimulate your writing skills and present arguments and ideas to people of different minds. This variety of thoughts allows you to prepare your arguments well and find efficient ways to justify them.
2. Because our opinions need to be substantiated by elements that everyone can see, to be considered true. An opinion that is not proven, cannot be considered correct, because it is created without the analysis of facts and evidence, presenting only the perception of its author and this cannot be considered correct.
3. The target audience refers to the audience you want to reach with your essay, that is, what types of people do you want to read and understand the arguments you are presenting in this text and why it is important that this type of person read your text. Also, you must imagine how this text is relevant to these people and how they are helped by it.
4. You must observe how the proposal you present in the text is possible to happen and how it can improve a community or population. However, even though it is a proposal that can be implemented, it does not happen and you should think about the reasons why it does not happen. These reasons can be political, economic, social, environmental, among others.