Undergraduate / An experience or concept I have learned - what are they looking for? [5]

Describe an experience that you have had or a concept you have learned about that intellectually excites you. When answering this question, you may want to consider some of the following questions: Why does this topic excite you? How does it impact the way you or others experience the world? What questions do you continue to ponder about it?

Should I focus maybe on the subject I'm interested in majoring in, or could I branch out into other subjects that I find intellectually stimulating? I want o major in economics, but I'm not really sure I have enough to say to answer this topic. I'm also considering writing about the environment because that's something that really interests me as well. Basically, I would just like advice on how to approach this question. Thanks! :)