What percent of the world's population has flown on an airplane? 80%
60%
40%
less than 10%

Explanation:

Before you start writing, you need to decide exactly what you’ll write about and do the necessary research.Coming up with a topicIf you have to come up with your own topic for an assignment, think of what you’ve covered in class—is there a particular area that intrigued, interested, or even confused you? Topics that left you with additional questions are perfect, as these are questions you can explore in your writing.The scope of your topics depends on what type of text you’re writing—for example, an essay, a research paper or a dissertation. Don’t pick anything too ambitious to cover within the word count, or too limited for you to find much to say.Narrow down your idea to a specific argument or question. For example, an appropriate topic for an essay might be narrowed down like this: