There are millions of things around you, and an article can be written on everything, as if you ride a bike, then think how does that bike run? What needs to be saved in that, how is a bike made? Where does Petrol come from?
Where do vegetables come from? What do farmers need, how to grow a good crop?
What is the importance of money, in this way a lot of things exist around us, just by thinking about which you start getting content, just run a little mind.