The answer is B. the ratio of the largest to smallest areas on a map.
Answer:Climax community is an ecological community in it final stage of succession, in which the species that makes up the community are relatively stable unless a rare earth disaster like earthquakes, fire etc destabilize the system. ... Most climax community takes hundreds and millions of years to reach stability. hopes this helps thats it
itExplanation:
DOB = DOE + EOA + AOB
180 = 60 + 90 + AOB
==> AOB =30
