I believe its lack of worthy projects, but ill tell you if im wrong.
This is true.
The definition of megalopolis is that it is a large urban area, huge and densely populated. St. Petersburg is definitely one, however, Miami is relatively small compared to other megalopolises so it might not fall within that category.
Landscape of your community can change by growth as more people move there they would have to build on more. hope this helps!!!!
Answer:
Shillong is in a hilly area and the hills trap the monsoon winds, so that Shillong becomes rainier than Kolkata.
Explanation: