Just as plastic causes problems for our planet, articles cause all kinds of problems for students of English, especially when their first language doesn’t really have them (Indonesian!).
In a more recent practice activity the focus is on sustainable development and how that relates to the envirnoment. Meanwhile if you’re not sure about how to use articles in English (a, an, the), read this first, and then try the activity below!
In addition to the instruction given, if no article is suitable then don’t make a selection. Good luck!