Welcome to the platform. All you have to do is to write something on the topic given, and make sure to follow the laid down rules. It must be your own thoughts and ideas, not a copy and paste thing as plagiarism is highly discouraged. But if you're quoting someone, then you must cite the source. I encourage you to start something, as getting to do something is the only way you get to learn better and faster.
Hope this was useful to you.