Question

Rats were common in the modern, newly built areas of hanoi, explain?

Answer 1

because the items eaten by them ate generally found in tjat area

Answer 2

French thought of building the Modern Hanoi with best infrastructure and well-laid out sewer system. They built a well-laid out sewer system in the modern part of the city but the native area was left without any changes. During heavy rain, the dirty sewage water from the native part of the city flooded the towns. Thus what was created to develop Hanoi became a cause of plague in the city. The well-laid out sewer system served as the protective huge breeding ground for the rats. Also they serve as a good transport system and the rats start entering the well cared homes of the French people.