Which is not a factor that contributes to the modern increase in catastrophes in urban areas?

Question

Quizplus · Accepted Answer

While increased sports and leisure activities could potentially increase the likelihood of individual accidents, they are not a factor in the overall increase in catastrophes in urban areas. The other choices (B, C, and D) all contribute to the modern increase in catastrophes in urban areas by either increasing the likelihood of slope failure or decreasing the ability of the area to handle excess water from precipitation.

Which Is Not a Factor That Contributes to the Modern