~Hello there!
Your question: The core of a city, which is primarily based on commercial activity, is called the ____________.
Your answer: The core of a city, which is primarily based on commercial activity, is called the central business district.
Hope this helps! :3
aerial photoghary is used for detecing natural disasters.
Because he thought it was India not the americas
The answer would be the average number of people in a given area.