i think studying in treehouse is better choice and reason is: in my perspective , you can sense the environment where its peaceful.. studying in a house makes you feel comfortable ..and you can study properly than studying in car which has no air and crowded people or studying on ground where you wont have proper environment or disturbing environment.eg. under a tree there might be some bugs and on ground there might be snakes thats not safe for students ..
The author is trying to make the readers comprehend the types of food we have by describing them and expounding on how effective or good the types of foods are for the brain by their description.
