What is urban expantion?

Answer 1

Simply put, its the population of man needing more land to build homes on,this will only ever get bigger unless something unforseen happens such as a pandemic or war,nature sometimes intervenes to stop overpopulation and this is usually catastrophic events,Sunamis,earthquakes and volcanoes ,not wishing to be rude at all but expansion is with an S,urban is man made built up areas