Final answer:
Without observational data, it's not possible to rank the spread of fire among Mountains, Foothills, and Plains. General patterns of fire spread influenced by topography suggest that Plains may experience the fastest spread and Mountains the slowest, but specific conditions are essential for accurate assessment.
Step-by-step explanation:
The question seeks to understand how the spread of fire is influenced by the topography, given that factors such as vegetation and meteorological conditions can strongly affect the patterns of fire spread. It appears to be a practical exercise based on observational data, which would form part of a Geography or Environmental Science subject.
Without specific observational data provided in the question, it's not possible to accurately rank the speed of fire spread in the zones (Mountains, Foothills, Plains). Typically, one might assume that fires could spread rapidly in Plains due to generally unobstructed paths, more slowly in Foothills that may have variable terrain that could help or hinder fire spread, and slowest in Mountains due to natural barriers and changes in vegetation and oxygen levels with altitude.
However, these are generalizations and the actual conditions during a specific fire event are critical to understanding fire spread. In conclusion, the ranking of fire spread speed from fastest to slowest largely depends on conditions that are not specified in the question provided.