FILL IN THE BLANK. one of the speakers in the video made an analogy between a city and a very large tree. in this analogy, the root system of the tree was compared to___. view available hint(s)for part a one of the speakers in the video made an analogy between a city and a very large tree. in this analogy, the root system of the tree was compared to___. the way soils, air, and water are needed to sustain people in the city the movement of currency within a city as people and businesses make purchases the subway system that moves people around within a city the heat and carbon dioxide produced by the daily activities within a city