Answer:
The black dots represents cities.
The Gray shaded are represent those areas which are affected by volcano.
The entire affected area was 10 to 25 miles.
Explanation:
The black dots in the graph represents all the cities. Of these cities few are affected by Volcano. Gray shaded area has been used to identify those areas which are affected by volcano. The total area which is affected and damaged by the volcano is around 10 to 25 miles.
