The plot is about how middle schoolers evolve. The setting of the school shows the everyday life of the main middle schooler going through the struggles of being a preteen and the preparation for high school. (If this doesn’t help google the plot of the story and think about the setting and the the relation.)
Nature is often called as man's best friend. Nature helps you all life long from the tine you were a sperm till your death. Nature helps you a very long time or just say, it keeps on helping.